Fix content packs, seed the leaderboard, and add the missing site furniture

Naming
- "Typing Test" removed from the browser tab, the crate description and the
  READMEs. The scope outgrew it: solo practice, live races, code drills and
  adaptive weak-key training.

Content
- Movies was prose *about* film, not film quotes - the same mistake the
  programming pack had. Replaced with 28 attributed lines. New anime pack,
  28 lines across 24 series.
- This follows the model TypeRacer states outright ("type quotes from popular
  music, songs, anime, comic books and more"): short excerpts attributed to
  the work they came from. The scalable half of their approach is user
  submission with moderation, which is a feature this does not have yet.

Leaderboard
- An empty board tells a new player nobody is here. Bots now race the eight
  fixed-length leaderboard modes, seeded with a fortnight of backdated results
  on first run and one new result every 90 seconds after.
- They are ordinary users carrying is_bot, returned by the same query and
  labelled "bot" in the UI. Seeding a board is reasonable; passing synthetic
  scores off as human results is not, so the flag travels with the row.
- Seeding is checked per mode. A single result from the live ticker used to
  satisfy an "any bot results" guard and leave every other mode empty forever.

Stats
- The per-key accuracy data Practice mode is built on was computed, used to
  generate text, and never shown. The screen now ranks your weakest keys with
  the error rate and pause length behind each one.
- Added recent form against your lifetime average, best accuracy, and tests
  this week.

Multiplayer standings
- Now place, racer, WPM, accuracy and time, with column labels - the columns
  TypeRacer and 10FastFingers both show.

Site furniture
- Share (Web Share where available, clipboard otherwise - no third-party
  button, no tracking script), a GitHub link, and a real privacy page written
  from what the code actually stores rather than from a template.

Button hierarchy
- Everything was an outlined box of roughly equal weight, so a screen's one
  real action, a settings toggle and a filter chip looked alike. Three tiers
  now: primary (filled, one per screen), default (outlined), quiet (toggles
  and filters, bordered only when hovered or active).

1 files changed, 726 insertions, 521 deletions

diff --git a/web/src/data/texts.json b/web/src/data/texts.json
index a618268..931151b 100644
--- a/web/src/data/texts.json
+++ b/web/src/data/texts.json
@@ -1,119 +1,134 @@
 [
   {
-    "category": "technology",
-    "content": "The transistor, invented in 1947, replaced bulky vacuum tubes and became the foundational building block of nearly every modern electronic device.",
-    "attribution": "Technology"
+    "category": "literature",
+    "content": "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness.",
+    "attribution": "Charles Dickens, A Tale of Two Cities"
   },
   {
-    "category": "programming",
-    "content": "public static void main(String[] args) { System.out.println(\"ready\"); }",
-    "attribution": "Java",
-    "language": "clike",
-    "explanation": "Java's entry point. The signature is fixed: static so it runs without an instance, and taking the command-line arguments."
+    "category": "business",
+    "content": "A monopoly exists when a single company dominates an entire market with no significant competition, often leading regulators to intervene to protect consumers.",
+    "attribution": "Business"
   },
   {
-    "category": "science",
-    "content": "Water is one of the few substances that becomes less dense as it freezes, which is why ice floats on top of liquid water instead of sinking to the bottom.",
-    "attribution": "Science"
+    "category": "movies",
+    "content": "The greatest trick the devil ever pulled was convincing the world he didn't exist.",
+    "attribution": "The Usual Suspects (1995)"
+  },
+  {
+    "category": "anime",
+    "content": "A lesson without pain is meaningless. That's because you cannot gain something without sacrificing something else in return.",
+    "attribution": "Fullmetal Alchemist"
+  },
+  {
+    "category": "general",
+    "content": "Bananas are botanically classified as berries, while strawberries are not. The classification depends on how the fruit develops from the flower, not on taste or size.",
+    "attribution": "General knowledge"
   },
   {
     "category": "programming",
-    "content": "impl Display for Token { fn fmt(&self, f: &mut Formatter) -> Result { write!(f, \"{}\", self.0) } }",
-    "attribution": "Rust",
-    "language": "rust",
-    "explanation": "Implementing Display is what makes a type usable in {}. self.0 is the first field of a tuple struct."
+    "content": "def fib(n): return n if n < 2 else fib(n - 1) + fib(n - 2)",
+    "attribution": "Python",
+    "language": "python",
+    "explanation": "Recursion with a base case. Correct but exponential - each call spawns two more, so it recomputes the same values repeatedly."
   },
   {
     "category": "philosophy",
-    "content": "I think, therefore I am.",
-    "attribution": "Rene Descartes, Discourse on the Method"
+    "content": "The Socratic method uses a series of questions and answers to expose contradictions in a person's beliefs, encouraging deeper critical thinking rather than simply providing answers.",
+    "attribution": "Philosophy"
   },
   {
-    "category": "quotes",
-    "content": "The only limit to our realization of tomorrow is our doubts of today.",
-    "attribution": "Franklin D. Roosevelt"
+    "category": "business",
+    "content": "Diversification spreads investment risk across different assets, so that a poor outcome in one area does not sink an entire portfolio.",
+    "attribution": "Business"
   },
   {
-    "category": "quotes",
-    "content": "It always seems impossible until it's done.",
-    "attribution": "Nelson Mandela"
+    "category": "programming",
+    "content": "for (int i = 0; i < n; i++) { sum += a[i] * b[i]; }",
+    "attribution": "C",
+    "language": "clike",
+    "explanation": "A dot product. The bound is < n, not <= n; off-by-one here reads past the end of the array."
   },
   {
-    "category": "quotes",
-    "content": "Failure is impossible.",
-    "attribution": "Susan B. Anthony"
+    "category": "literature",
+    "content": "The Time Traveller, for so it will be convenient to speak of him, was expounding a recondite matter to us. His grey eyes shone and twinkled, and his usually pale face was flushed and animated.",
+    "attribution": "H.G. Wells, The Time Machine"
   },
   {
-    "category": "history",
-    "content": "The Roman Empire at its height stretched from Britain in the north to Egypt in the south, connected by a vast network of roads that still exist in parts of Europe today.",
-    "attribution": "History"
+    "category": "movies",
+    "content": "Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.",
+    "attribution": "Jurassic Park (1993)"
   },
   {
     "category": "literature",
-    "content": "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness.",
-    "attribution": "Charles Dickens, A Tale of Two Cities"
+    "content": "A throng of bearded men, in sad-colored garments and gray, steeple-crowned hats, intermixed with women, some wearing hoods, and others bareheaded, was assembled in front of a wooden edifice.",
+    "attribution": "Nathaniel Hawthorne, The Scarlet Letter"
   },
   {
-    "category": "general",
-    "content": "Sharks existed long before trees. Fossil evidence suggests that sharks have been swimming in the oceans for more than four hundred million years, while the earliest trees did not appear until tens of millions of years later.",
-    "attribution": "General knowledge"
+    "category": "movies",
+    "content": "Oh, what a day. What a lovely day!",
+    "attribution": "Mad Max: Fury Road (2015)"
+  },
+  {
+    "category": "business",
+    "content": "Supply and demand describes how the price of a good tends to rise when demand exceeds supply, and fall when supply exceeds demand.",
+    "attribution": "Business"
   },
   {
     "category": "nature",
-    "content": "The Amazon rainforest is home to an estimated ten percent of all known species on Earth, making it one of the most biodiverse regions on the planet.",
+    "content": "A rainforest canopy can be so dense that less than two percent of sunlight reaches the forest floor below.",
     "attribution": "Nature"
   },
   {
-    "category": "movies",
-    "content": "A film's runtime is typically decided during editing, where an editor works with hours of raw footage to shape a coherent story within a manageable length.",
-    "attribution": "Film"
+    "category": "anime",
+    "content": "If you win, you live. If you lose, you die. If you don't fight, you can't win.",
+    "attribution": "Attack on Titan"
   },
   {
-    "category": "science",
-    "content": "Evolution by natural selection describes how organisms with traits better suited to their environment tend to survive and reproduce more successfully, gradually shaping a population over many generations.",
-    "attribution": "Science, after Charles Darwin"
+    "category": "anime",
+    "content": "We fear that which we cannot see.",
+    "attribution": "Bleach"
   },
   {
-    "category": "business",
-    "content": "Branding is the practice of shaping how customers perceive a company, going beyond a logo to include tone, values, and the overall experience of using a product.",
-    "attribution": "Business"
+    "category": "literature",
+    "content": "The year 1866 was signalised by a remarkable incident, a mysterious and inexplicable phenomenon, which doubtless no one has yet forgotten. Ships had met with a huge thing, a long object, spindle-shaped, and at times phosphorescent.",
+    "attribution": "Jules Verne, Twenty Thousand Leagues Under the Sea"
   },
   {
     "category": "programming",
-    "content": "let mut counts: HashMap<String, usize> = HashMap::new();",
-    "attribution": "Rust",
-    "language": "rust",
-    "explanation": "mut because inserting mutates it. The type annotation is needed here since nothing yet tells the compiler what it holds."
+    "content": "export PATH=\"$HOME/.local/bin:$PATH\" && command -v rg >/dev/null || echo missing",
+    "attribution": "Shell",
+    "language": "shell",
+    "explanation": "Prepending puts your own binaries ahead of the system ones. command -v is the portable test for whether something is installed."
   },
   {
-    "category": "business",
-    "content": "Henry Ford, founder of the Ford Motor Company, is credited with popularizing the moving assembly line, which dramatically reduced the time needed to build an automobile.",
-    "attribution": "History of Business"
+    "category": "movies",
+    "content": "I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it.",
+    "attribution": "The Matrix (1999)"
   },
   {
-    "category": "literature",
-    "content": "All we have to decide is what to do with the time that is given us.",
-    "attribution": "J.R.R. Tolkien, The Fellowship of the Ring"
+    "category": "business",
+    "content": "Market research helps a business understand its customers' needs and preferences before committing resources to a new product or service.",
+    "attribution": "Business"
   },
   {
-    "category": "literature",
-    "content": "Mr. Sherlock Holmes, who was usually very late in the mornings, save upon those not infrequent occasions when he was up all night, was seated at the breakfast table.",
-    "attribution": "Arthur Conan Doyle, The Hound of the Baskervilles"
+    "category": "technology",
+    "content": "The transistor, invented in 1947, replaced bulky vacuum tubes and became the foundational building block of nearly every modern electronic device.",
+    "attribution": "Technology"
   },
   {
-    "category": "literature",
-    "content": "The year 1866 was signalised by a remarkable incident, a mysterious and inexplicable phenomenon, which doubtless no one has yet forgotten. Ships had met with a huge thing, a long object, spindle-shaped, and at times phosphorescent.",
-    "attribution": "Jules Verne, Twenty Thousand Leagues Under the Sea"
+    "category": "business",
+    "content": "A merger combines two companies into one, while an acquisition occurs when one company purchases and absorbs another, though the two terms are often used loosely in everyday conversation.",
+    "attribution": "Business"
   },
   {
-    "category": "literature",
-    "content": "A throng of bearded men, in sad-colored garments and gray, steeple-crowned hats, intermixed with women, some wearing hoods, and others bareheaded, was assembled in front of a wooden edifice.",
-    "attribution": "Nathaniel Hawthorne, The Scarlet Letter"
+    "category": "movies",
+    "content": "I am big. It's the pictures that got small.",
+    "attribution": "Sunset Boulevard (1950)"
   },
   {
-    "category": "science",
-    "content": "The speed of light in a vacuum is approximately two hundred ninety nine thousand, seven hundred ninety two kilometers per second, and nothing with mass can reach or exceed it.",
-    "attribution": "Science"
+    "category": "movies",
+    "content": "We used to look up at the sky and wonder at our place in the stars. Now we just look down and worry about our place in the dirt.",
+    "attribution": "Interstellar (2014)"
   },
   {
     "category": "science",
@@ -121,303 +136,383 @@
     "attribution": "Science"
   },
   {
-    "category": "history",
-    "content": "The invention of the wheel around 3500 BCE is considered one of the most important technological breakthroughs in human history, transforming transportation and trade.",
-    "attribution": "History"
-  },
-  {
-    "category": "movies",
-    "content": "Citizen Kane, released in 1941, is frequently cited by critics and filmmakers as one of the greatest films ever made, praised for its innovative camera work and narrative structure.",
-    "attribution": "Film"
+    "category": "general",
+    "content": "The Amazon rainforest produces roughly twenty percent of the oxygen found in the planet's atmosphere, earning it the nickname the lungs of the Earth.",
+    "attribution": "General knowledge"
   },
   {
     "category": "science",
-    "content": "Sound travels as a wave of pressure through a medium such as air or water, and it cannot travel through the vacuum of space, since there are no particles to carry the vibration.",
-    "attribution": "Science"
+    "content": "Evolution by natural selection describes how organisms with traits better suited to their environment tend to survive and reproduce more successfully, gradually shaping a population over many generations.",
+    "attribution": "Science, after Charles Darwin"
   },
   {
-    "category": "quotes",
-    "content": "Success is to be measured not so much by the position that one has reached in life as by the obstacles which he has overcome while trying to succeed.",
-    "attribution": "Booker T. Washington"
+    "category": "movies",
+    "content": "I'm gonna make him an offer he can't refuse.",
+    "attribution": "The Godfather (1972)"
   },
   {
-    "category": "literature",
-    "content": "There was no possibility of taking a walk that day. We had been wandering, indeed, in the leafless shrubbery an hour in the morning, but since dinner the cold winter wind had brought with it clouds so sombre, and a rain so penetrating.",
-    "attribution": "Charlotte Bronte, Jane Eyre"
+    "category": "anime",
+    "content": "Overspecialize, and you breed in weakness. It's slow death.",
+    "attribution": "Ghost in the Shell"
   },
   {
-    "category": "literature",
-    "content": "Not all those who wander are lost.",
-    "attribution": "J.R.R. Tolkien"
+    "category": "anime",
+    "content": "Whatever happens, happens.",
+    "attribution": "Cowboy Bebop"
   },
   {
-    "category": "technology",
-    "content": "A central processing unit executes the instructions of a computer program by performing basic arithmetic, logic, and input and output operations.",
-    "attribution": "Technology"
+    "category": "business",
+    "content": "A balance sheet summarizes what a company owns and owes at a single point in time, split into assets, liabilities, and shareholders' equity.",
+    "attribution": "Business"
   },
   {
-    "category": "nature",
-    "content": "In every walk with nature one receives far more than he seeks.",
-    "attribution": "John Muir"
+    "category": "movies",
+    "content": "With great power comes great responsibility.",
+    "attribution": "Spider-Man (2002)"
   },
   {
     "category": "literature",
-    "content": "The Nellie, a cruising yawl, swung to her anchor without a flutter of the sails, and was at rest. The flood had made, the wind was nearly calm, and being bound down the river, the only thing for it was to come to and wait for the turn of the tide.",
-    "attribution": "Joseph Conrad, Heart of Darkness"
+    "content": "In my younger and more vulnerable years my father gave me some advice that I've been turning over in my mind ever since. Whenever you feel like criticizing anyone, he told me, just remember that all the people in this world haven't had the advantages that you've had.",
+    "attribution": "F. Scott Fitzgerald, The Great Gatsby"
   },
   {
     "category": "technology",
-    "content": "A firewall monitors and controls incoming and outgoing network traffic based on predetermined security rules, acting as a barrier between a trusted network and an untrusted one.",
+    "content": "Moore's Law observed that the number of transistors on a computer chip tends to double roughly every two years, driving decades of rapid improvement in computing power.",
     "attribution": "Technology"
   },
   {
-    "category": "quotes",
-    "content": "Whatever you are, be a good one.",
-    "attribution": "Abraham Lincoln"
-  },
-  {
     "category": "philosophy",
-    "content": "A journey of a thousand miles begins with a single step.",
-    "attribution": "Lao Tzu, Tao Te Ching"
+    "content": "It is not that we have a short time to live, but that we waste a lot of it.",
+    "attribution": "Seneca, On the Shortness of Life"
   },
   {
-    "category": "movies",
-    "content": "Alfred Hitchcock was known for making brief cameo appearances in nearly all of his own films, a habit that became something of a signature.",
-    "attribution": "Film"
+    "category": "anime",
+    "content": "Hard work is worthless for those that don't believe in themselves.",
+    "attribution": "Naruto"
   },
   {
-    "category": "general",
-    "content": "Bamboo is one of the fastest growing plants on Earth. Some species can grow nearly a meter in a single day under the right conditions, which is why it is used so widely in construction and manufacturing across Asia.",
-    "attribution": "General knowledge"
-  },
-  {
-    "category": "programming",
-    "content": "pub struct Point { pub x: f64, pub y: f64 }",
-    "attribution": "Rust",
-    "language": "rust",
-    "explanation": "Fields are private by default in Rust, so each one needs its own pub - making the struct public does not publish its contents."
+    "category": "anime",
+    "content": "If you don't take risks, you can't create a future.",
+    "attribution": "One Piece"
   },
   {
     "category": "nature",
-    "content": "Migratory birds can travel thousands of miles between breeding and wintering grounds, navigating using the sun, stars, and the Earth's magnetic field.",
+    "content": "Deserts are defined by low precipitation rather than temperature, which is why some of the coldest places on Earth, including parts of Antarctica, are technically deserts.",
     "attribution": "Nature"
   },
   {
-    "category": "nature",
-    "content": "The world is big and I want to have a good look at it before it gets dark.",
-    "attribution": "John Muir"
+    "category": "business",
+    "content": "Return on investment measures the profitability of an investment relative to its cost, expressed as a percentage to make it easy to compare different opportunities.",
+    "attribution": "Business"
   },
   {
-    "category": "literature",
-    "content": "It was the best of times, it was the worst of times.",
-    "attribution": "Charles Dickens, A Tale of Two Cities"
+    "category": "anime",
+    "content": "A heart's a heavy burden.",
+    "attribution": "Howl's Moving Castle"
   },
   {
     "category": "technology",
-    "content": "Artificial intelligence refers to computer systems designed to perform tasks that normally require human intelligence, such as recognizing speech, images, or patterns in data.",
+    "content": "Fiber optic cables transmit data as pulses of light through thin strands of glass, allowing information to travel at extremely high speeds over long distances.",
     "attribution": "Technology"
   },
   {
-    "category": "business",
-    "content": "Supply and demand describes how the price of a good tends to rise when demand exceeds supply, and fall when supply exceeds demand.",
-    "attribution": "Business"
+    "category": "history",
+    "content": "The signing of the Magna Carta in 1215 limited the power of the English king and established the principle that even a monarch was subject to the law.",
+    "attribution": "History"
   },
   {
-    "category": "general",
-    "content": "The quick brown fox jumps over the lazy dog.",
-    "attribution": "Traditional pangram"
+    "category": "science",
+    "content": "DNA carries the genetic instructions for every living organism, encoded in a sequence of four chemical bases that pair together to form the famous double helix shape.",
+    "attribution": "Science"
   },
   {
-    "category": "movies",
-    "content": "The Academy Awards, commonly known as the Oscars, have been presented annually since 1929 to honor achievements in the film industry.",
-    "attribution": "Film"
+    "category": "quotes",
+    "content": "It is not the critic who counts; not the man who points out how the strong man stumbles. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood.",
+    "attribution": "Theodore Roosevelt, Citizenship in a Republic"
+  },
+  {
+    "category": "quotes",
+    "content": "It always seems impossible until it's done.",
+    "attribution": "Nelson Mandela"
   },
   {
     "category": "general",
-    "content": "Venus is the hottest planet in the solar system, even though Mercury sits closer to the sun. A thick blanket of carbon dioxide traps heat at the surface.",
+    "content": "The human brain generates enough electricity to power a small light bulb. Billions of neurons firing electrical signals at once produce roughly the same wattage as a dim household lamp.",
     "attribution": "General knowledge"
   },
   {
+    "category": "quotes",
+    "content": "You have power over your mind, not outside events. Realize this, and you will find strength.",
+    "attribution": "Marcus Aurelius, Meditations"
+  },
+  {
+    "category": "movies",
+    "content": "What we've got here is failure to communicate.",
+    "attribution": "Cool Hand Luke (1967)"
+  },
+  {
+    "category": "philosophy",
+    "content": "Stoicism is a school of ancient Greek philosophy that teaches the practice of virtue as the only true good, and encourages focusing only on what lies within one's own control.",
+    "attribution": "Philosophy"
+  },
+  {
     "category": "history",
-    "content": "The Wright brothers achieved the first powered, controlled flight in 1903 near Kitty Hawk, North Carolina, a flight that lasted only twelve seconds.",
+    "content": "The Cold War divided much of the world into two opposing blocs for nearly half a century, one aligned with the United States and the other with the Soviet Union.",
+    "attribution": "History"
+  },
+  {
+    "category": "history",
+    "content": "The Renaissance began in Italy in the fourteenth century, sparking a renewed interest in classical art, science, and learning that eventually spread across Europe.",
     "attribution": "History"
   },
   {
     "category": "technology",
-    "content": "Fiber optic cables transmit data as pulses of light through thin strands of glass, allowing information to travel at extremely high speeds over long distances.",
+    "content": "Open source software is released with its source code publicly available, allowing anyone to view, modify, and distribute it under the terms of its license.",
     "attribution": "Technology"
   },
   {
-    "category": "programming",
-    "content": "if err != nil { return fmt.Errorf(\"read config: %w\", err) }",
-    "attribution": "Go",
-    "language": "clike",
-    "explanation": "Go's error convention. %w wraps the original so errors.Is and errors.As can still see it further up."
+    "category": "anime",
+    "content": "When do you think people die? When they are forgotten.",
+    "attribution": "One Piece"
+  },
+  {
+    "category": "technology",
+    "content": "Cloud computing allows businesses and individuals to rent computing power and storage over the internet instead of maintaining their own physical servers.",
+    "attribution": "Technology"
+  },
+  {
+    "category": "science",
+    "content": "Mitochondria convert nutrients into a usable form of energy for the cell, which is why biology textbooks often call them the powerhouse of the cell.",
+    "attribution": "Science"
   },
   {
     "category": "business",
-    "content": "A balance sheet summarizes what a company owns and owes at a single point in time, split into assets, liabilities, and shareholders' equity.",
-    "attribution": "Business"
+    "content": "Customer obsession, rather than competitor focus, is the surest path to long term success.",
+    "attribution": "Jeff Bezos"
   },
   {
-    "category": "programming",
-    "content": "export PATH=\"$HOME/.local/bin:$PATH\" && command -v rg >/dev/null || echo missing",
-    "attribution": "Shell",
-    "language": "shell",
-    "explanation": "Prepending puts your own binaries ahead of the system ones. command -v is the portable test for whether something is installed."
+    "category": "anime",
+    "content": "This world is rotten, and those who are making it rot deserve to die.",
+    "attribution": "Death Note"
   },
   {
     "category": "movies",
-    "content": "The first feature length narrative film, The Story of the Kelly Gang, was made in Australia in 1906 and ran for about an hour.",
-    "attribution": "Film"
+    "content": "I love the smell of napalm in the morning.",
+    "attribution": "Apocalypse Now (1979)"
+  },
+  {
+    "category": "business",
+    "content": "Branding is the practice of shaping how customers perceive a company, going beyond a logo to include tone, values, and the overall experience of using a product.",
+    "attribution": "Business"
+  },
+  {
+    "category": "literature",
+    "content": "It was the best of times, it was the worst of times.",
+    "attribution": "Charles Dickens, A Tale of Two Cities"
   },
   {
     "category": "nature",
-    "content": "The Sahara Desert was once a green landscape with lakes and grasslands, before a shift in the Earth's orbit altered rainfall patterns thousands of years ago.",
+    "content": "The Amazon rainforest is home to an estimated ten percent of all known species on Earth, making it one of the most biodiverse regions on the planet.",
     "attribution": "Nature"
   },
   {
-    "category": "general",
-    "content": "Antarctica is technically the largest desert on the planet. Despite being covered in ice, it receives very little precipitation each year, which is the defining characteristic of a desert rather than temperature alone.",
-    "attribution": "General knowledge"
+    "category": "philosophy",
+    "content": "The only true wisdom is in knowing you know nothing.",
+    "attribution": "Socrates"
   },
   {
-    "category": "history",
-    "content": "The signing of the Magna Carta in 1215 limited the power of the English king and established the principle that even a monarch was subject to the law.",
-    "attribution": "History"
+    "category": "anime",
+    "content": "Even if you can't see it, the river keeps flowing under the ice.",
+    "attribution": "March Comes in Like a Lion"
+  },
+  {
+    "category": "technology",
+    "content": "A blockchain is a distributed ledger that records transactions across many computers, making it difficult to alter any single record without changing every subsequent block.",
+    "attribution": "Technology"
+  },
+  {
+    "category": "movies",
+    "content": "I'm as mad as hell, and I'm not going to take this anymore.",
+    "attribution": "Network (1976)"
   },
   {
     "category": "programming",
-    "content": "const { id, name = 'anonymous', ...rest } = await request.json();",
+    "content": "if (typeof value !== 'string' || value.length === 0) { return null; }",
     "attribution": "JavaScript",
     "language": "javascript",
-    "explanation": "Destructuring with a default and a rest property. The default applies only when the value is undefined, not when it is null."
+    "explanation": "A guard clause: reject the bad input first and return, instead of nesting the real work inside an if."
   },
   {
-    "category": "history",
-    "content": "The Industrial Revolution transformed economies across Europe and North America during the eighteenth and nineteenth centuries, shifting production from hand tools to machines.",
-    "attribution": "History"
+    "category": "anime",
+    "content": "You should enjoy the little detours to the fullest, because that's where you'll find the things more important than what you want.",
+    "attribution": "Hunter x Hunter"
   },
   {
-    "category": "general",
-    "content": "The Great Wall of China was not built all at once. It was constructed and extended over many centuries by different dynasties, each adding new sections and rebuilding older ones to defend against invasions from the north.",
-    "attribution": "General knowledge"
+    "category": "anime",
+    "content": "You have no enemies. Nobody has any enemies. There is nobody that you should hurt.",
+    "attribution": "Vinland Saga"
   },
   {
     "category": "history",
-    "content": "The Cold War divided much of the world into two opposing blocs for nearly half a century, one aligned with the United States and the other with the Soviet Union.",
-    "attribution": "History"
+    "content": "I will fight no more forever.",
+    "attribution": "Chief Joseph, Nez Perce, 1877"
   },
   {
-    "category": "science",
-    "content": "Vaccines work by training the immune system to recognize a weakened or partial version of a pathogen, so the body can respond quickly if it ever encounters the real threat.",
-    "attribution": "Science"
+    "category": "literature",
+    "content": "You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer, but that ain't no matter. That book was made by Mr. Mark Twain, and he told the truth, mainly.",
+    "attribution": "Mark Twain, Adventures of Huckleberry Finn"
+  },
+  {
+    "category": "programming",
+    "content": "const unique = [...new Set(values)].sort((a, b) => a - b);",
+    "attribution": "JavaScript",
+    "language": "javascript",
+    "explanation": "A Set discards duplicates. Spreading it back to an array allows sorting; the comparator is required or numbers sort as text."
   },
   {
     "category": "science",
-    "content": "A black hole forms when a massive star collapses under its own gravity, packing so much mass into so small a space that not even light can escape its pull.",
+    "content": "Marie Curie remains the only person to win Nobel Prizes in two different sciences, physics and chemistry, for her pioneering research into radioactivity.",
     "attribution": "Science"
   },
   {
-    "category": "programming",
-    "content": "for i, v := range items { fmt.Printf(\"%d: %v\\n\", i, v) }",
-    "attribution": "Go",
-    "language": "clike",
-    "explanation": "range yields index and value. In Go before 1.22 the loop variable was reused each iteration, which surprised anyone capturing it in a closure."
+    "category": "technology",
+    "content": "Machine learning is a branch of artificial intelligence in which a system improves its performance on a task by learning patterns from data rather than following explicit instructions.",
+    "attribution": "Technology"
   },
   {
-    "category": "quotes",
-    "content": "Genius is one percent inspiration and ninety-nine percent perspiration.",
-    "attribution": "Thomas Edison"
+    "category": "philosophy",
+    "content": "The beginning is the most important part of the work.",
+    "attribution": "Plato, The Republic"
+  },
+  {
+    "category": "business",
+    "content": "Henry Ford, founder of the Ford Motor Company, is credited with popularizing the moving assembly line, which dramatically reduced the time needed to build an automobile.",
+    "attribution": "History of Business"
   },
   {
     "category": "general",
-    "content": "The Pacific Ocean covers more of the planet than all the continents combined. It stretches from the icy waters near Antarctica to the Arctic Circle, and its deepest point, the Mariana Trench, plunges nearly eleven kilometers below the surface.",
-    "attribution": "General knowledge"
+    "content": "The quick brown fox jumps over the lazy dog.",
+    "attribution": "Traditional pangram"
   },
   {
-    "category": "philosophy",
-    "content": "It's not what happens to you, but how you react to it that matters.",
-    "attribution": "Epictetus"
+    "category": "nature",
+    "content": "The deepest part of the ocean, the Mariana Trench, plunges nearly eleven kilometers below the surface, deeper than Mount Everest is tall.",
+    "attribution": "Nature"
   },
   {
-    "category": "literature",
-    "content": "I read that every known superstition in the world is gathered into the horseshoe of the Carpathians, as if it were the centre of some sort of imaginative whirlpool, and it made me uneasy in a way I could not explain.",
-    "attribution": "Bram Stoker, Dracula"
+    "category": "programming",
+    "content": "impl Display for Token { fn fmt(&self, f: &mut Formatter) -> Result { write!(f, \"{}\", self.0) } }",
+    "attribution": "Rust",
+    "language": "rust",
+    "explanation": "Implementing Display is what makes a type usable in {}. self.0 is the first field of a tuple struct."
   },
   {
     "category": "programming",
-    "content": "const unique = [...new Set(values)].sort((a, b) => a - b);",
-    "attribution": "JavaScript",
-    "language": "javascript",
-    "explanation": "A Set discards duplicates. Spreading it back to an array allows sorting; the comparator is required or numbers sort as text."
+    "content": "match result { Ok(v) => println!(\"{v}\"), Err(e) => eprintln!(\"error: {e}\") }",
+    "attribution": "Rust",
+    "language": "rust",
+    "explanation": "match on a Result must cover both arms - the compiler rejects it otherwise, which is how Rust stops an error going unhandled."
   },
   {
     "category": "technology",
-    "content": "Quantum computing uses the principles of quantum mechanics to process information in ways that classical computers cannot, potentially solving certain problems far faster.",
+    "content": "Robotics combines mechanical engineering, electronics, and computer science to design machines capable of performing tasks autonomously or with minimal human control.",
     "attribution": "Technology"
   },
   {
+    "category": "literature",
+    "content": "I read that every known superstition in the world is gathered into the horseshoe of the Carpathians, as if it were the centre of some sort of imaginative whirlpool, and it made me uneasy in a way I could not explain.",
+    "attribution": "Bram Stoker, Dracula"
+  },
+  {
+    "category": "movies",
+    "content": "There's no crying in baseball.",
+    "attribution": "A League of Their Own (1992)"
+  },
+  {
     "category": "quotes",
-    "content": "Our greatest glory is not in never falling, but in rising every time we fall.",
-    "attribution": "Confucius"
+    "content": "Stay hungry, stay foolish.",
+    "attribution": "Steve Jobs"
   },
   {
     "category": "general",
-    "content": "The human brain generates enough electricity to power a small light bulb. Billions of neurons firing electrical signals at once produce roughly the same wattage as a dim household lamp.",
+    "content": "Antarctica is technically the largest desert on the planet. Despite being covered in ice, it receives very little precipitation each year, which is the defining characteristic of a desert rather than temperature alone.",
     "attribution": "General knowledge"
   },
   {
-    "category": "literature",
-    "content": "Christmas won't be Christmas without any presents, grumbled Jo, lying on the rug. It's so dreadful to be poor, sighed Meg, looking down at her old dress.",
-    "attribution": "Louisa May Alcott, Little Women"
-  },
-  {
     "category": "history",
-    "content": "The Silk Road was not a single road but a network of trade routes connecting China to the Mediterranean, carrying silk, spices, and ideas across the ancient world.",
+    "content": "The Apollo 11 mission landed the first humans on the Moon in July of 1969, when astronauts Neil Armstrong and Buzz Aldrin walked on the lunar surface.",
     "attribution": "History"
   },
   {
-    "category": "literature",
-    "content": "Call me Ishmael. Some years ago, never mind how long precisely, having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world.",
-    "attribution": "Herman Melville, Moby-Dick"
+    "category": "movies",
+    "content": "Get busy living, or get busy dying.",
+    "attribution": "The Shawshank Redemption (1994)"
   },
   {
     "category": "programming",
-    "content": "export async function load(url) { const res = await fetch(url); return res.json(); }",
+    "content": "fn main() { println!(\"{}\", args().skip(1).collect::<Vec<_>>().join(\" \")); }",
+    "attribution": "Rust",
+    "language": "rust",
+    "explanation": "skip(1) drops the program name, which is always the first argument. Vec<_> lets the compiler infer the element type."
+  },
+  {
+    "category": "quotes",
+    "content": "If there is no struggle, there is no progress. Those who profess to favor freedom, and yet depreciate agitation, are men who want crops without plowing up the ground.",
+    "attribution": "Frederick Douglass"
+  },
+  {
+    "category": "movies",
+    "content": "You're gonna need a bigger boat.",
+    "attribution": "Jaws (1975)"
+  },
+  {
+    "category": "science",
+    "content": "Genetics research has shown that humans share about ninety-nine percent of their DNA with chimpanzees, the closest living relative to our species.",
+    "attribution": "Science"
+  },
+  {
+    "category": "programming",
+    "content": "document.querySelectorAll('.row').forEach(el => el.classList.toggle('active'));",
     "attribution": "JavaScript",
     "language": "javascript",
-    "explanation": "fetch resolves as soon as headers arrive, so .json() is a second await for the body. It does not throw on a 404 - check res.ok."
+    "explanation": "querySelectorAll returns a static NodeList, so it will not change as you mutate the elements in it."
+  },
+  {
+    "category": "programming",
+    "content": "const { id, name = 'anonymous', ...rest } = await request.json();",
+    "attribution": "JavaScript",
+    "language": "javascript",
+    "explanation": "Destructuring with a default and a rest property. The default applies only when the value is undefined, not when it is null."
   },
   {
     "category": "history",
-    "content": "The printing press, developed by Johannes Gutenberg in the fifteenth century, made it possible to produce books far more quickly and cheaply than copying them by hand.",
+    "content": "The Wright brothers achieved the first powered, controlled flight in 1903 near Kitty Hawk, North Carolina, a flight that lasted only twelve seconds.",
     "attribution": "History"
   },
   {
-    "category": "quotes",
-    "content": "Stay hungry, stay foolish.",
-    "attribution": "Steve Jobs"
+    "category": "history",
+    "content": "The Silk Road was not a single road but a network of trade routes connecting China to the Mediterranean, carrying silk, spices, and ideas across the ancient world.",
+    "attribution": "History"
   },
   {
-    "category": "nature",
-    "content": "Bees pollinate roughly a third of the crops humans rely on for food, making them essential to global agriculture despite their small size.",
-    "attribution": "Nature"
+    "category": "technology",
+    "content": "The World Wide Web was invented by Tim Berners-Lee in 1989 as a way to share documents over the internet using hyperlinks.",
+    "attribution": "Technology"
   },
   {
-    "category": "quotes",
-    "content": "It is not the critic who counts; not the man who points out how the strong man stumbles. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood.",
-    "attribution": "Theodore Roosevelt, Citizenship in a Republic"
+    "category": "nature",
+    "content": "Mycorrhizal fungi form partnerships with the roots of most plants, helping them absorb water and nutrients in exchange for sugars produced by photosynthesis.",
+    "attribution": "Nature"
   },
   {
-    "category": "business",
-    "content": "Market research helps a business understand its customers' needs and preferences before committing resources to a new product or service.",
-    "attribution": "Business"
+    "category": "philosophy",
+    "content": "Every new beginning comes from some other beginning's end.",
+    "attribution": "Seneca, Letters from a Stoic"
   },
   {
-    "category": "nature",
-    "content": "A single mature tree can absorb around twenty two kilograms of carbon dioxide per year, making forests an important part of regulating the planet's climate.",
-    "attribution": "Nature"
+    "category": "literature",
+    "content": "Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do. Once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it.",
+    "attribution": "Lewis Carroll, Alice's Adventures in Wonderland"
   },
   {
     "category": "science",
@@ -425,351 +520,399 @@
     "attribution": "Science"
   },
   {
-    "category": "business",
-    "content": "Customer obsession, rather than competitor focus, is the surest path to long term success.",
-    "attribution": "Jeff Bezos"
+    "category": "history",
+    "content": "Ancient Egyptian civilization flourished along the Nile River for thousands of years, leaving behind monuments such as the pyramids of Giza and the temples of Luxor.",
+    "attribution": "History"
   },
   {
-    "category": "movies",
-    "content": "The special effects in the original Star Wars trilogy were largely achieved with physical models and practical effects, long before computer generated imagery became common.",
-    "attribution": "Film"
+    "category": "programming",
+    "content": "squares = [n * n for n in range(1, 21) if n % 3 != 0]",
+    "attribution": "Python",
+    "language": "python",
+    "explanation": "A list comprehension: the expression, the loop, then the filter. Faster and clearer than appending in a for loop."
   },
   {
     "category": "general",
-    "content": "A group of flamingos is called a flamboyance. The birds get their pink color from the pigments in the shrimp and algae they eat.",
+    "content": "The Eiffel Tower grows about six inches taller in the summer, as the iron structure expands slightly in the heat and contracts again once the weather cools.",
     "attribution": "General knowledge"
   },
   {
+    "category": "philosophy",
+    "content": "A journey of a thousand miles begins with a single step.",
+    "attribution": "Lao Tzu, Tao Te Ching"
+  },
+  {
+    "category": "programming",
+    "content": "with open('data.csv', encoding='utf-8') as f: rows = [line.split(',') for line in f]",
+    "attribution": "Python",
+    "language": "python",
+    "explanation": "with closes the file even if the body raises. Iterating a file yields lines without loading it all into memory."
+  },
+  {
     "category": "technology",
-    "content": "Open source software is released with its source code publicly available, allowing anyone to view, modify, and distribute it under the terms of its license.",
+    "content": "Artificial intelligence refers to computer systems designed to perform tasks that normally require human intelligence, such as recognizing speech, images, or patterns in data.",
     "attribution": "Technology"
   },
   {
     "category": "programming",
-    "content": "match result { Ok(v) => println!(\"{v}\"), Err(e) => eprintln!(\"error: {e}\") }",
+    "content": "pub struct Point { pub x: f64, pub y: f64 }",
     "attribution": "Rust",
     "language": "rust",
-    "explanation": "match on a Result must cover both arms - the compiler rejects it otherwise, which is how Rust stops an error going unhandled."
+    "explanation": "Fields are private by default in Rust, so each one needs its own pub - making the struct public does not publish its contents."
   },
   {
-    "category": "programming",
-    "content": "struct node { int value; struct node *next; };",
-    "attribution": "C",
-    "language": "clike",
-    "explanation": "A linked-list node. It refers to its own type through a pointer, which is legal because a pointer has a known size."
+    "category": "history",
+    "content": "The Great Depression of the 1930s began with the stock market crash of 1929 and led to widespread unemployment and economic hardship across the globe.",
+    "attribution": "History"
   },
   {
-    "category": "programming",
-    "content": "int *buf = malloc(len * sizeof(int)); if (!buf) return -1;",
-    "attribution": "C",
-    "language": "clike",
-    "explanation": "malloc returns NULL when it fails, and checking is not optional. sizeof(int) rather than 4 keeps it correct across platforms."
+    "category": "philosophy",
+    "content": "I think, therefore I am.",
+    "attribution": "Rene Descartes, Discourse on the Method"
   },
   {
-    "category": "literature",
-    "content": "It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. However little known the feelings or views of such a man may be on his first entering a neighbourhood, this truth is so well fixed in the minds of the surrounding families.",
-    "attribution": "Jane Austen, Pride and Prejudice"
+    "category": "movies",
+    "content": "It's only after we've lost everything that we're free to do anything.",
+    "attribution": "Fight Club (1999)"
   },
   {
-    "category": "science",
-    "content": "Mitochondria convert nutrients into a usable form of energy for the cell, which is why biology textbooks often call them the powerhouse of the cell.",
-    "attribution": "Science"
+    "category": "literature",
+    "content": "All we have to decide is what to do with the time that is given us.",
+    "attribution": "J.R.R. Tolkien, The Fellowship of the Ring"
   },
   {
     "category": "nature",
-    "content": "Rivers shape the landscape around them over thousands of years, carving canyons and depositing sediment that forms fertile floodplains.",
+    "content": "The Sahara Desert was once a green landscape with lakes and grasslands, before a shift in the Earth's orbit altered rainfall patterns thousands of years ago.",
     "attribution": "Nature"
   },
   {
     "category": "nature",
-    "content": "The deepest part of the ocean, the Mariana Trench, plunges nearly eleven kilometers below the surface, deeper than Mount Everest is tall.",
+    "content": "A single mature tree can absorb around twenty two kilograms of carbon dioxide per year, making forests an important part of regulating the planet's climate.",
     "attribution": "Nature"
   },
   {
+    "category": "movies",
+    "content": "If you build it, he will come.",
+    "attribution": "Field of Dreams (1989)"
+  },
+  {
     "category": "quotes",
-    "content": "If there is no struggle, there is no progress. Those who profess to favor freedom, and yet depreciate agitation, are men who want crops without plowing up the ground.",
-    "attribution": "Frederick Douglass"
+    "content": "The two most important days in your life are the day you are born and the day you find out why.",
+    "attribution": "Mark Twain"
+  },
+  {
+    "category": "movies",
+    "content": "All we have to decide is what to do with the time that is given us.",
+    "attribution": "The Lord of the Rings: The Fellowship of the Ring (2001)"
+  },
+  {
+    "category": "literature",
+    "content": "The Nellie, a cruising yawl, swung to her anchor without a flutter of the sails, and was at rest. The flood had made, the wind was nearly calm, and being bound down the river, the only thing for it was to come to and wait for the turn of the tide.",
+    "attribution": "Joseph Conrad, Heart of Darkness"
   },
   {
     "category": "general",
-    "content": "Bananas are botanically classified as berries, while strawberries are not. The classification depends on how the fruit develops from the flower, not on taste or size.",
+    "content": "A single bolt of lightning can heat the surrounding air to temperatures hotter than the surface of the sun. The rapid expansion of that superheated air is what produces the crack of thunder we hear moments later.",
     "attribution": "General knowledge"
   },
   {
+    "category": "history",
+    "content": "The Industrial Revolution transformed economies across Europe and North America during the eighteenth and nineteenth centuries, shifting production from hand tools to machines.",
+    "attribution": "History"
+  },
+  {
+    "category": "anime",
+    "content": "Humankind cannot gain anything without first giving something in return. To obtain, something of equal value must be lost.",
+    "attribution": "Fullmetal Alchemist"
+  },
+  {
     "category": "programming",
-    "content": "with open('data.csv', encoding='utf-8') as f: rows = [line.split(',') for line in f]",
-    "attribution": "Python",
-    "language": "python",
-    "explanation": "with closes the file even if the body raises. Iterating a file yields lines without loading it all into memory."
+    "content": "export async function load(url) { const res = await fetch(url); return res.json(); }",
+    "attribution": "JavaScript",
+    "language": "javascript",
+    "explanation": "fetch resolves as soon as headers arrive, so .json() is a second await for the body. It does not throw on a 404 - check res.ok."
   },
   {
-    "category": "nature",
-    "content": "Wolves live and hunt in structured packs, usually led by a breeding pair, and communicate through howls that can be heard for several kilometers.",
-    "attribution": "Nature"
+    "category": "programming",
+    "content": "grep -rn \"TODO\" src/ | awk -F: '{print $1}' | sort -u",
+    "attribution": "Shell",
+    "language": "shell",
+    "explanation": "grep -n prints file:line:text, awk splits on the colon to take the filename, sort -u removes the duplicates."
   },
   {
     "category": "science",
-    "content": "The human body contains roughly thirty seven trillion cells, each one specialized to carry out one of hundreds of different jobs inside the body.",
+    "content": "A black hole forms when a massive star collapses under its own gravity, packing so much mass into so small a space that not even light can escape its pull.",
     "attribution": "Science"
   },
   {
-    "category": "philosophy",
-    "content": "Every new beginning comes from some other beginning's end.",
-    "attribution": "Seneca, Letters from a Stoic"
+    "category": "literature",
+    "content": "1801. I have just returned from a visit to my landlord, the solitary neighbour that I shall be troubled with. This is certainly a beautiful country. In all England, I do not believe that I could have fixed on a situation so completely removed from the stir of society.",
+    "attribution": "Emily Bronte, Wuthering Heights"
   },
   {
-    "category": "history",
-    "content": "The fall of the Berlin Wall in 1989 marked a turning point in the Cold War, as East and West Germany moved toward reunification the following year.",
-    "attribution": "History"
+    "category": "literature",
+    "content": "Call me Ishmael. Some years ago, never mind how long precisely, having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world.",
+    "attribution": "Herman Melville, Moby-Dick"
   },
   {
-    "category": "movies",
-    "content": "The word cinema comes from the Greek word for movement, reflecting how early filmmakers were fascinated by the illusion of motion created by a sequence of still images.",
-    "attribution": "Film"
+    "category": "business",
+    "content": "The purpose of a business is to create and keep a customer.",
+    "attribution": "Peter Drucker"
   },
   {
-    "category": "nature",
-    "content": "Mycorrhizal fungi form partnerships with the roots of most plants, helping them absorb water and nutrients in exchange for sugars produced by photosynthesis.",
-    "attribution": "Nature"
+    "category": "anime",
+    "content": "When you look at someone's kindness, it's like looking at the sun.",
+    "attribution": "Fruits Basket"
   },
   {
-    "category": "programming",
-    "content": "counts = {word: text.count(word) for word in set(text.split())}",
-    "attribution": "Python",
-    "language": "python",
-    "explanation": "A dict comprehension. Note it is quadratic: count rescans the whole string per word. collections.Counter is the right tool."
+    "category": "literature",
+    "content": "There was no possibility of taking a walk that day. We had been wandering, indeed, in the leafless shrubbery an hour in the morning, but since dinner the cold winter wind had brought with it clouds so sombre, and a rain so penetrating.",
+    "attribution": "Charlotte Bronte, Jane Eyre"
   },
   {
-    "category": "general",
-    "content": "The first computer programmer is widely considered to be Ada Lovelace, who wrote an algorithm for an early mechanical computer in the eighteen forties, decades before any machine capable of running it was ever built.",
-    "attribution": "General knowledge"
+    "category": "literature",
+    "content": "Christmas won't be Christmas without any presents, grumbled Jo, lying on the rug. It's so dreadful to be poor, sighed Meg, looking down at her old dress.",
+    "attribution": "Louisa May Alcott, Little Women"
   },
   {
-    "category": "technology",
-    "content": "Robotics combines mechanical engineering, electronics, and computer science to design machines capable of performing tasks autonomously or with minimal human control.",
-    "attribution": "Technology"
+    "category": "anime",
+    "content": "When people are protecting something truly special to them, they truly can become as strong as they can be.",
+    "attribution": "Naruto"
+  },
+  {
+    "category": "science",
+    "content": "Vaccines work by training the immune system to recognize a weakened or partial version of a pathogen, so the body can respond quickly if it ever encounters the real threat.",
+    "attribution": "Science"
   },
   {
     "category": "literature",
-    "content": "You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer, but that ain't no matter. That book was made by Mr. Mark Twain, and he told the truth, mainly.",
-    "attribution": "Mark Twain, Adventures of Huckleberry Finn"
+    "content": "The studio was filled with the rich odour of roses, and when the light summer wind stirred amidst the trees of the garden, there came through the open door the heavy scent of the lilac, or the more delicate perfume of the pink-flowering thorn.",
+    "attribution": "Oscar Wilde, The Picture of Dorian Gray"
   },
   {
-    "category": "movies",
-    "content": "The highest grossing films of all time are dominated by franchises built around superheroes, fantasy worlds, and long running science fiction universes.",
-    "attribution": "Film"
+    "category": "quotes",
+    "content": "Genius is one percent inspiration and ninety-nine percent perspiration.",
+    "attribution": "Thomas Edison"
   },
   {
     "category": "technology",
-    "content": "Cloud computing allows businesses and individuals to rent computing power and storage over the internet instead of maintaining their own physical servers.",
+    "content": "A virtual private network encrypts a device's internet connection, helping to protect data from being intercepted while it travels over a public or untrusted network.",
     "attribution": "Technology"
   },
   {
-    "category": "technology",
-    "content": "Moore's Law observed that the number of transistors on a computer chip tends to double roughly every two years, driving decades of rapid improvement in computing power.",
-    "attribution": "Technology"
+    "category": "general",
+    "content": "Venus is the hottest planet in the solar system, even though Mercury sits closer to the sun. A thick blanket of carbon dioxide traps heat at the surface.",
+    "attribution": "General knowledge"
   },
   {
     "category": "movies",
-    "content": "Stop motion animation creates the illusion of movement by photographing physical objects one frame at a time and repositioning them slightly between each shot.",
-    "attribution": "Film"
+    "content": "Of all the gin joints in all the towns in all the world, she walks into mine.",
+    "attribution": "Casablanca (1942)"
   },
   {
-    "category": "nature",
-    "content": "Heaven is under our feet as well as over our heads.",
-    "attribution": "Henry David Thoreau, Walden"
+    "category": "movies",
+    "content": "My mama always said life was like a box of chocolates. You never know what you're gonna get.",
+    "attribution": "Forrest Gump (1994)"
   },
   {
-    "category": "business",
-    "content": "A merger combines two companies into one, while an acquisition occurs when one company purchases and absorbs another, though the two terms are often used loosely in everyday conversation.",
-    "attribution": "Business"
+    "category": "anime",
+    "content": "Once you've met someone, you never really forget them.",
+    "attribution": "Spirited Away"
   },
   {
-    "category": "science",
-    "content": "The periodic table arranges chemical elements by increasing atomic number, grouping elements with similar properties into the same columns.",
-    "attribution": "Science"
+    "category": "movies",
+    "content": "A census taker once tried to test me. I ate his liver with some fava beans and a nice chianti.",
+    "attribution": "The Silence of the Lambs (1991)"
   },
   {
-    "category": "nature",
-    "content": "Deserts are defined by low precipitation rather than temperature, which is why some of the coldest places on Earth, including parts of Antarctica, are technically deserts.",
-    "attribution": "Nature"
+    "category": "philosophy",
+    "content": "It does not matter how slowly you go as long as you do not stop.",
+    "attribution": "Confucius, Analects"
   },
   {
-    "category": "business",
-    "content": "A monopoly exists when a single company dominates an entire market with no significant competition, often leading regulators to intervene to protect consumers.",
-    "attribution": "Business"
+    "category": "literature",
+    "content": "To Sherlock Holmes she is always the woman. I have seldom heard him mention her under any other name. In his eyes she eclipses and predominates the whole of her sex.",
+    "attribution": "Arthur Conan Doyle, A Scandal in Bohemia"
   },
   {
-    "category": "movies",
-    "content": "The Wizard of Oz was one of the first major films to use Technicolor extensively, transitioning from black and white to vivid color once Dorothy arrives in Oz.",
-    "attribution": "Film"
+    "category": "literature",
+    "content": "Buck did not read the newspapers, or he would have known that trouble was brewing, not alone for himself, but for every tide-water dog, strong of muscle and with warm, long hair, from Puget Sound to San Diego.",
+    "attribution": "Jack London, The Call of the Wild"
   },
   {
-    "category": "science",
-    "content": "Newton's first law of motion states that an object at rest stays at rest, and an object in motion stays in motion, unless acted on by an outside force.",
-    "attribution": "Science"
+    "category": "general",
+    "content": "The Pacific Ocean covers more of the planet than all the continents combined. It stretches from the icy waters near Antarctica to the Arctic Circle, and its deepest point, the Mariana Trench, plunges nearly eleven kilometers below the surface.",
+    "attribution": "General knowledge"
   },
   {
-    "category": "programming",
-    "content": "let total: i64 = values.iter().filter(|v| **v > 0).sum();",
-    "attribution": "Rust",
-    "language": "rust",
-    "explanation": "iter() borrows rather than consuming. The double deref is because filter hands you a reference to the iterator's own reference."
+    "category": "anime",
+    "content": "The only thing we're allowed to do is to believe that we won't regret the choice we made.",
+    "attribution": "Attack on Titan"
   },
   {
-    "category": "technology",
-    "content": "Machine learning is a branch of artificial intelligence in which a system improves its performance on a task by learning patterns from data rather than following explicit instructions.",
-    "attribution": "Technology"
+    "category": "anime",
+    "content": "The only ones who should kill are those who are prepared to be killed.",
+    "attribution": "Code Geass"
   },
   {
-    "category": "general",
-    "content": "The invention of the printing press in the fifteenth century transformed how knowledge spread across Europe. Books that once took months to copy by hand could suddenly be reproduced by the hundreds, making literacy far more accessible.",
-    "attribution": "General knowledge"
+    "category": "literature",
+    "content": "It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. However little known the feelings or views of such a man may be on his first entering a neighbourhood, this truth is so well fixed in the minds of the surrounding families.",
+    "attribution": "Jane Austen, Pride and Prejudice"
   },
   {
-    "category": "science",
-    "content": "DNA carries the genetic instructions for every living organism, encoded in a sequence of four chemical bases that pair together to form the famous double helix shape.",
-    "attribution": "Science"
+    "category": "nature",
+    "content": "Rivers shape the landscape around them over thousands of years, carving canyons and depositing sediment that forms fertile floodplains.",
+    "attribution": "Nature"
   },
   {
-    "category": "business",
-    "content": "A startup's burn rate measures how quickly it spends its available cash, an important number for founders trying to plan how long the company can operate before running out of money.",
-    "attribution": "Business"
+    "category": "technology",
+    "content": "A central processing unit executes the instructions of a computer program by performing basic arithmetic, logic, and input and output operations.",
+    "attribution": "Technology"
   },
   {
     "category": "philosophy",
-    "content": "Waste no more time arguing about what a good man should be. Be one.",
+    "content": "The impediment to action advances action. What stands in the way becomes the way.",
     "attribution": "Marcus Aurelius, Meditations"
   },
   {
     "category": "literature",
-    "content": "To Sherlock Holmes she is always the woman. I have seldom heard him mention her under any other name. In his eyes she eclipses and predominates the whole of her sex.",
-    "attribution": "Arthur Conan Doyle, A Scandal in Bohemia"
+    "content": "Mr. Sherlock Holmes, who was usually very late in the mornings, save upon those not infrequent occasions when he was up all night, was seated at the breakfast table.",
+    "attribution": "Arthur Conan Doyle, The Hound of the Baskervilles"
+  },
+  {
+    "category": "anime",
+    "content": "Trees and people used to be good friends.",
+    "attribution": "My Neighbor Totoro"
   },
   {
     "category": "programming",
-    "content": "const total = items.reduce((acc, item) => acc + item.price, 0);",
-    "attribution": "JavaScript",
-    "language": "javascript",
-    "explanation": "reduce walks the array carrying a running value. The 0 is the starting total; drop it and an empty array throws."
+    "content": "struct node { int value; struct node *next; };",
+    "attribution": "C",
+    "language": "clike",
+    "explanation": "A linked-list node. It refers to its own type through a pointer, which is legal because a pointer has a known size."
   },
   {
-    "category": "literature",
-    "content": "Buck did not read the newspapers, or he would have known that trouble was brewing, not alone for himself, but for every tide-water dog, strong of muscle and with warm, long hair, from Puget Sound to San Diego.",
-    "attribution": "Jack London, The Call of the Wild"
+    "category": "nature",
+    "content": "The world is big and I want to have a good look at it before it gets dark.",
+    "attribution": "John Muir"
   },
   {
-    "category": "general",
-    "content": "A day on Venus is longer than its year. The planet rotates so slowly on its axis that it takes longer to spin around once than it does to complete an entire orbit around the sun.",
-    "attribution": "General knowledge"
+    "category": "anime",
+    "content": "Don't be afraid of things you don't understand. Just accept them as they are.",
+    "attribution": "Mushishi"
   },
   {
-    "category": "programming",
-    "content": "try: value = int(raw) except ValueError: value = 0",
-    "attribution": "Python",
-    "language": "python",
-    "explanation": "Catching the specific exception, not a bare except - a bare one would also swallow KeyboardInterrupt."
+    "category": "philosophy",
+    "content": "Waste no more time arguing about what a good man should be. Be one.",
+    "attribution": "Marcus Aurelius, Meditations"
   },
   {
-    "category": "history",
-    "content": "I will fight no more forever.",
-    "attribution": "Chief Joseph, Nez Perce, 1877"
+    "category": "programming",
+    "content": "let total: i64 = values.iter().filter(|v| **v > 0).sum();",
+    "attribution": "Rust",
+    "language": "rust",
+    "explanation": "iter() borrows rather than consuming. The double deref is because filter hands you a reference to the iterator's own reference."
   },
   {
     "category": "nature",
-    "content": "Coral reefs cover less than one percent of the ocean floor, yet they support roughly a quarter of all marine species.",
+    "content": "Migratory birds can travel thousands of miles between breeding and wintering grounds, navigating using the sun, stars, and the Earth's magnetic field.",
     "attribution": "Nature"
   },
   {
     "category": "quotes",
-    "content": "The two most important days in your life are the day you are born and the day you find out why.",
-    "attribution": "Mark Twain"
+    "content": "Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.",
+    "attribution": "Abraham Lincoln, The Gettysburg Address"
   },
   {
     "category": "business",
-    "content": "Price is what you pay, and value is what you get.",
-    "attribution": "Warren Buffett"
+    "content": "The man who dies rich, dies disgraced.",
+    "attribution": "Andrew Carnegie"
+  },
+  {
+    "category": "quotes",
+    "content": "To be great is to be misunderstood.",
+    "attribution": "Ralph Waldo Emerson, Self-Reliance"
   },
   {
     "category": "programming",
-    "content": "fn main() { println!(\"{}\", args().skip(1).collect::<Vec<_>>().join(\" \")); }",
-    "attribution": "Rust",
-    "language": "rust",
-    "explanation": "skip(1) drops the program name, which is always the first argument. Vec<_> lets the compiler infer the element type."
+    "content": "public static void main(String[] args) { System.out.println(\"ready\"); }",
+    "attribution": "Java",
+    "language": "clike",
+    "explanation": "Java's entry point. The signature is fixed: static so it runs without an instance, and taking the command-line arguments."
   },
   {
-    "category": "literature",
-    "content": "The Time Traveller, for so it will be convenient to speak of him, was expounding a recondite matter to us. His grey eyes shone and twinkled, and his usually pale face was flushed and animated.",
-    "attribution": "H.G. Wells, The Time Machine"
+    "category": "programming",
+    "content": "for f in *.log; do gzip -9 \"$f\" && echo \"packed $f\"; done",
+    "attribution": "Shell",
+    "language": "shell",
+    "explanation": "The quotes around $f matter: without them a filename containing a space becomes two arguments."
   },
   {
     "category": "general",
-    "content": "The Eiffel Tower grows about six inches taller in the summer, as the iron structure expands slightly in the heat and contracts again once the weather cools.",
+    "content": "Bamboo is one of the fastest growing plants on Earth. Some species can grow nearly a meter in a single day under the right conditions, which is why it is used so widely in construction and manufacturing across Asia.",
     "attribution": "General knowledge"
   },
   {
-    "category": "quotes",
-    "content": "To be great is to be misunderstood.",
-    "attribution": "Ralph Waldo Emerson, Self-Reliance"
+    "category": "business",
+    "content": "A startup's burn rate measures how quickly it spends its available cash, an important number for founders trying to plan how long the company can operate before running out of money.",
+    "attribution": "Business"
   },
   {
-    "category": "philosophy",
-    "content": "The only true wisdom is in knowing you know nothing.",
-    "attribution": "Socrates"
+    "category": "nature",
+    "content": "Heaven is under our feet as well as over our heads.",
+    "attribution": "Henry David Thoreau, Walden"
   },
   {
-    "category": "movies",
-    "content": "The Cannes Film Festival, held annually in France since 1946, is considered one of the most prestigious film festivals in the world.",
-    "attribution": "Film"
+    "category": "technology",
+    "content": "Quantum computing uses the principles of quantum mechanics to process information in ways that classical computers cannot, potentially solving certain problems far faster.",
+    "attribution": "Technology"
   },
   {
-    "category": "quotes",
-    "content": "That man over there says that women need to be helped into carriages, and lifted over ditches, and to have the best place everywhere. Nobody ever helps me into carriages, or over mud puddles, or gives me any best place, and ain't I a woman?",
-    "attribution": "Sojourner Truth, Ain't I a Woman?"
+    "category": "programming",
+    "content": "for i, v := range items { fmt.Printf(\"%d: %v\\n\", i, v) }",
+    "attribution": "Go",
+    "language": "clike",
+    "explanation": "range yields index and value. In Go before 1.22 the loop variable was reused each iteration, which surprised anyone capturing it in a closure."
   },
   {
-    "category": "technology",
-    "content": "A virtual private network encrypts a device's internet connection, helping to protect data from being intercepted while it travels over a public or untrusted network.",
-    "attribution": "Technology"
+    "category": "nature",
+    "content": "Wolves live and hunt in structured packs, usually led by a breeding pair, and communicate through howls that can be heard for several kilometers.",
+    "attribution": "Nature"
   },
   {
-    "category": "philosophy",
-    "content": "Stoicism is a school of ancient Greek philosophy that teaches the practice of virtue as the only true good, and encourages focusing only on what lies within one's own control.",
-    "attribution": "Philosophy"
+    "category": "nature",
+    "content": "Coral reefs cover less than one percent of the ocean floor, yet they support roughly a quarter of all marine species.",
+    "attribution": "Nature"
   },
   {
-    "category": "programming",
-    "content": "for f in *.log; do gzip -9 \"$f\" && echo \"packed $f\"; done",
-    "attribution": "Shell",
-    "language": "shell",
-    "explanation": "The quotes around $f matter: without them a filename containing a space becomes two arguments."
+    "category": "movies",
+    "content": "Louis, I think this is the beginning of a beautiful friendship.",
+    "attribution": "Casablanca (1942)"
   },
   {
-    "category": "general",
-    "content": "The shortest war in recorded history was fought between Britain and Zanzibar in 1896. It lasted around forty minutes before Zanzibar surrendered.",
-    "attribution": "General knowledge"
+    "category": "history",
+    "content": "The fall of the Berlin Wall in 1989 marked a turning point in the Cold War, as East and West Germany moved toward reunification the following year.",
+    "attribution": "History"
   },
   {
     "category": "business",
-    "content": "The man who dies rich, dies disgraced.",
-    "attribution": "Andrew Carnegie"
+    "content": "Cash flow tracks the actual movement of money into and out of a business, which can differ significantly from reported profit due to timing differences in payments.",
+    "attribution": "Business"
   },
   {
     "category": "quotes",
-    "content": "You have power over your mind, not outside events. Realize this, and you will find strength.",
-    "attribution": "Marcus Aurelius, Meditations"
+    "content": "Our greatest glory is not in never falling, but in rising every time we fall.",
+    "attribution": "Confucius"
   },
   {
-    "category": "programming",
-    "content": "for (int i = 0; i < n; i++) { sum += a[i] * b[i]; }",
-    "attribution": "C",
-    "language": "clike",
-    "explanation": "A dot product. The bound is < n, not <= n; off-by-one here reads past the end of the array."
+    "category": "philosophy",
+    "content": "All men by nature desire to know.",
+    "attribution": "Aristotle, Metaphysics"
   },
   {
-    "category": "technology",
-    "content": "The World Wide Web was invented by Tim Berners-Lee in 1989 as a way to share documents over the internet using hyperlinks.",
-    "attribution": "Technology"
+    "category": "general",
+    "content": "Honey never spoils if it is stored properly. Archaeologists have found pots of honey in ancient Egyptian tombs that are thousands of years old and still perfectly edible, preserved by its low moisture content and natural acidity.",
+    "attribution": "General knowledge"
   },
   {
     "category": "literature",
@@ -778,75 +921,84 @@
   },
   {
     "category": "programming",
-    "content": "if (typeof value !== 'string' || value.length === 0) { return null; }",
-    "attribution": "JavaScript",
-    "language": "javascript",
-    "explanation": "A guard clause: reject the bad input first and return, instead of nesting the real work inside an if."
+    "content": "counts = {word: text.count(word) for word in set(text.split())}",
+    "attribution": "Python",
+    "language": "python",
+    "explanation": "A dict comprehension. Note it is quadratic: count rescans the whole string per word. collections.Counter is the right tool."
   },
   {
-    "category": "movies",
-    "content": "A film's score is often composed after the movie has been edited, allowing the composer to match the music precisely to the pacing and mood of each scene.",
-    "attribution": "Film"
+    "category": "general",
+    "content": "The shortest war in recorded history was fought between Britain and Zanzibar in 1896. It lasted around forty minutes before Zanzibar surrendered.",
+    "attribution": "General knowledge"
   },
   {
-    "category": "history",
-    "content": "The Apollo 11 mission landed the first humans on the Moon in July of 1969, when astronauts Neil Armstrong and Buzz Aldrin walked on the lunar surface.",
-    "attribution": "History"
+    "category": "quotes",
+    "content": "Whatever you are, be a good one.",
+    "attribution": "Abraham Lincoln"
   },
   {
-    "category": "movies",
-    "content": "Method acting, popularized in the mid twentieth century, encourages performers to draw on personal memories and emotions to portray a character as realistically as possible.",
-    "attribution": "Film"
+    "category": "programming",
+    "content": "let mut counts: HashMap<String, usize> = HashMap::new();",
+    "attribution": "Rust",
+    "language": "rust",
+    "explanation": "mut because inserting mutates it. The type annotation is needed here since nothing yet tells the compiler what it holds."
   },
   {
-    "category": "technology",
-    "content": "A blockchain is a distributed ledger that records transactions across many computers, making it difficult to alter any single record without changing every subsequent block.",
-    "attribution": "Technology"
+    "category": "history",
+    "content": "The Roman Empire at its height stretched from Britain in the north to Egypt in the south, connected by a vast network of roads that still exist in parts of Europe today.",
+    "attribution": "History"
   },
   {
     "category": "general",
-    "content": "A single bolt of lightning can heat the surrounding air to temperatures hotter than the surface of the sun. The rapid expansion of that superheated air is what produces the crack of thunder we hear moments later.",
+    "content": "A day on Venus is longer than its year. The planet rotates so slowly on its axis that it takes longer to spin around once than it does to complete an entire orbit around the sun.",
     "attribution": "General knowledge"
   },
   {
-    "category": "science",
-    "content": "Genetics research has shown that humans share about ninety-nine percent of their DNA with chimpanzees, the closest living relative to our species.",
-    "attribution": "Science"
+    "category": "nature",
+    "content": "In every walk with nature one receives far more than he seeks.",
+    "attribution": "John Muir"
   },
   {
-    "category": "literature",
-    "content": "The studio was filled with the rich odour of roses, and when the light summer wind stirred amidst the trees of the garden, there came through the open door the heavy scent of the lilac, or the more delicate perfume of the pink-flowering thorn.",
-    "attribution": "Oscar Wilde, The Picture of Dorian Gray"
+    "category": "anime",
+    "content": "I feel like I'm always searching for someone, or something.",
+    "attribution": "Your Name"
   },
   {
-    "category": "literature",
-    "content": "In my younger and more vulnerable years my father gave me some advice that I've been turning over in my mind ever since. Whenever you feel like criticizing anyone, he told me, just remember that all the people in this world haven't had the advantages that you've had.",
-    "attribution": "F. Scott Fitzgerald, The Great Gatsby"
+    "category": "movies",
+    "content": "What we do in life echoes in eternity.",
+    "attribution": "Gladiator (2000)"
   },
   {
-    "category": "quotes",
-    "content": "Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.",
-    "attribution": "Abraham Lincoln, The Gettysburg Address"
+    "category": "movies",
+    "content": "Do. Or do not. There is no try.",
+    "attribution": "The Empire Strikes Back (1980)"
   },
   {
-    "category": "history",
-    "content": "The Great Depression of the 1930s began with the stock market crash of 1929 and led to widespread unemployment and economic hardship across the globe.",
-    "attribution": "History"
+    "category": "anime",
+    "content": "Anywhere can be paradise as long as you have the will to live.",
+    "attribution": "Neon Genesis Evangelion"
   },
   {
-    "category": "literature",
-    "content": "Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do. Once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it.",
-    "attribution": "Lewis Carroll, Alice's Adventures in Wonderland"
+    "category": "anime",
+    "content": "If everyone is not special, maybe you can be what you want to be.",
+    "attribution": "Mob Psycho 100"
   },
   {
-    "category": "philosophy",
-    "content": "Existentialism explores questions about individual freedom, choice, and meaning, arguing that people must create their own purpose in a universe that does not provide one automatically.",
-    "attribution": "Philosophy"
+    "category": "technology",
+    "content": "The first practical smartphones combined a mobile phone with computing features such as email, web browsing, and applications, changing how people communicate and work.",
+    "attribution": "Technology"
   },
   {
-    "category": "science",
-    "content": "Marie Curie remains the only person to win Nobel Prizes in two different sciences, physics and chemistry, for her pioneering research into radioactivity.",
-    "attribution": "Science"
+    "category": "quotes",
+    "content": "The only limit to our realization of tomorrow is our doubts of today.",
+    "attribution": "Franklin D. Roosevelt"
+  },
+  {
+    "category": "programming",
+    "content": "const total = items.reduce((acc, item) => acc + item.price, 0);",
+    "attribution": "JavaScript",
+    "language": "javascript",
+    "explanation": "reduce walks the array carrying a running value. The 0 is the starting total; drop it and an empty array throws."
   },
   {
     "category": "quotes",
@@ -854,125 +1006,151 @@
     "attribution": "Isaac Newton"
   },
   {
-    "category": "literature",
-    "content": "1801. I have just returned from a visit to my landlord, the solitary neighbour that I shall be troubled with. This is certainly a beautiful country. In all England, I do not believe that I could have fixed on a situation so completely removed from the stir of society.",
-    "attribution": "Emily Bronte, Wuthering Heights"
+    "category": "movies",
+    "content": "All those moments will be lost in time, like tears in rain. Time to die.",
+    "attribution": "Blade Runner (1982)"
   },
   {
-    "category": "nature",
-    "content": "A rainforest canopy can be so dense that less than two percent of sunlight reaches the forest floor below.",
-    "attribution": "Nature"
+    "category": "general",
+    "content": "The Great Wall of China was not built all at once. It was constructed and extended over many centuries by different dynasties, each adding new sections and rebuilding older ones to defend against invasions from the north.",
+    "attribution": "General knowledge"
   },
   {
-    "category": "programming",
-    "content": "def fib(n): return n if n < 2 else fib(n - 1) + fib(n - 2)",
-    "attribution": "Python",
-    "language": "python",
-    "explanation": "Recursion with a base case. Correct but exponential - each call spawns two more, so it recomputes the same values repeatedly."
+    "category": "business",
+    "content": "Price is what you pay, and value is what you get.",
+    "attribution": "Warren Buffett"
   },
   {
-    "category": "general",
-    "content": "The Amazon rainforest produces roughly twenty percent of the oxygen found in the planet's atmosphere, earning it the nickname the lungs of the Earth.",
-    "attribution": "General knowledge"
+    "category": "movies",
+    "content": "You mustn't be afraid to dream a little bigger, darling.",
+    "attribution": "Inception (2010)"
   },
   {
-    "category": "philosophy",
-    "content": "Utilitarianism holds that the right action is the one that produces the greatest good for the greatest number of people, judging morality by outcomes rather than intentions.",
-    "attribution": "Philosophy"
+    "category": "science",
+    "content": "Newton's first law of motion states that an object at rest stays at rest, and an object in motion stays in motion, unless acted on by an outside force.",
+    "attribution": "Science"
   },
   {
-    "category": "business",
-    "content": "The purpose of a business is to create and keep a customer.",
-    "attribution": "Peter Drucker"
+    "category": "general",
+    "content": "A group of flamingos is called a flamboyance. The birds get their pink color from the pigments in the shrimp and algae they eat.",
+    "attribution": "General knowledge"
   },
   {
-    "category": "philosophy",
-    "content": "The impediment to action advances action. What stands in the way becomes the way.",
-    "attribution": "Marcus Aurelius, Meditations"
+    "category": "quotes",
+    "content": "I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.",
+    "attribution": "Henry David Thoreau, Walden"
   },
   {
-    "category": "programming",
-    "content": "document.querySelectorAll('.row').forEach(el => el.classList.toggle('active'));",
-    "attribution": "JavaScript",
-    "language": "javascript",
-    "explanation": "querySelectorAll returns a static NodeList, so it will not change as you mutate the elements in it."
+    "category": "quotes",
+    "content": "Success is to be measured not so much by the position that one has reached in life as by the obstacles which he has overcome while trying to succeed.",
+    "attribution": "Booker T. Washington"
   },
   {
     "category": "technology",
-    "content": "The first practical smartphones combined a mobile phone with computing features such as email, web browsing, and applications, changing how people communicate and work.",
+    "content": "A firewall monitors and controls incoming and outgoing network traffic based on predetermined security rules, acting as a barrier between a trusted network and an untrusted one.",
     "attribution": "Technology"
   },
   {
-    "category": "history",
-    "content": "Ancient Egyptian civilization flourished along the Nile River for thousands of years, leaving behind monuments such as the pyramids of Giza and the temples of Luxor.",
-    "attribution": "History"
+    "category": "anime",
+    "content": "Don't believe in yourself. Believe in me who believes in you.",
+    "attribution": "Gurren Lagann"
   },
   {
-    "category": "philosophy",
-    "content": "It is not that we have a short time to live, but that we waste a lot of it.",
-    "attribution": "Seneca, On the Shortness of Life"
+    "category": "science",
+    "content": "The periodic table arranges chemical elements by increasing atomic number, grouping elements with similar properties into the same columns.",
+    "attribution": "Science"
   },
   {
-    "category": "business",
-    "content": "Return on investment measures the profitability of an investment relative to its cost, expressed as a percentage to make it easy to compare different opportunities.",
-    "attribution": "Business"
+    "category": "science",
+    "content": "The speed of light in a vacuum is approximately two hundred ninety nine thousand, seven hundred ninety two kilometers per second, and nothing with mass can reach or exceed it.",
+    "attribution": "Science"
   },
   {
-    "category": "quotes",
-    "content": "I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.",
-    "attribution": "Henry David Thoreau, Walden"
+    "category": "movies",
+    "content": "If you could see your whole life laid out in front of you, would you change things?",
+    "attribution": "Arrival (2016)"
   },
   {
     "category": "general",
-    "content": "Simplicity is the soul of efficiency.",
-    "attribution": "Austin Freeman"
+    "content": "Octopuses have three hearts and blue blood. Two of the hearts pump blood to the gills, while the third circulates it to the rest of the body, and the blue color comes from a copper-based protein instead of iron.",
+    "attribution": "General knowledge"
+  },
+  {
+    "category": "philosophy",
+    "content": "It's not what happens to you, but how you react to it that matters.",
+    "attribution": "Epictetus"
   },
   {
     "category": "general",
-    "content": "Honey never spoils if it is stored properly. Archaeologists have found pots of honey in ancient Egyptian tombs that are thousands of years old and still perfectly edible, preserved by its low moisture content and natural acidity.",
+    "content": "Sharks existed long before trees. Fossil evidence suggests that sharks have been swimming in the oceans for more than four hundred million years, while the earliest trees did not appear until tens of millions of years later.",
     "attribution": "General knowledge"
   },
   {
-    "category": "movies",
-    "content": "Silent films relied on live musicians and title cards to convey dialogue and emotion, since synchronized sound was not introduced into feature films until the late 1920s.",
-    "attribution": "Film"
+    "category": "anime",
+    "content": "What I want more than anything is for you to live and help me live too.",
+    "attribution": "A Silent Voice"
+  },
+  {
+    "category": "philosophy",
+    "content": "Existentialism explores questions about individual freedom, choice, and meaning, arguing that people must create their own purpose in a universe that does not provide one automatically.",
+    "attribution": "Philosophy"
+  },
+  {
+    "category": "science",
+    "content": "Water is one of the few substances that becomes less dense as it freezes, which is why ice floats on top of liquid water instead of sinking to the bottom.",
+    "attribution": "Science"
+  },
+  {
+    "category": "nature",
+    "content": "Bees pollinate roughly a third of the crops humans rely on for food, making them essential to global agriculture despite their small size.",
+    "attribution": "Nature"
+  },
+  {
+    "category": "programming",
+    "content": "if err != nil { return fmt.Errorf(\"read config: %w\", err) }",
+    "attribution": "Go",
+    "language": "clike",
+    "explanation": "Go's error convention. %w wraps the original so errors.Is and errors.As can still see it further up."
+  },
+  {
+    "category": "science",
+    "content": "The human body contains roughly thirty seven trillion cells, each one specialized to carry out one of hundreds of different jobs inside the body.",
+    "attribution": "Science"
   },
   {
     "category": "general",
-    "content": "Octopuses have three hearts and blue blood. Two of the hearts pump blood to the gills, while the third circulates it to the rest of the body, and the blue color comes from a copper-based protein instead of iron.",
-    "attribution": "General knowledge"
+    "content": "Simplicity is the soul of efficiency.",
+    "attribution": "Austin Freeman"
   },
   {
-    "category": "philosophy",
-    "content": "The beginning is the most important part of the work.",
-    "attribution": "Plato, The Republic"
+    "category": "science",
+    "content": "Sound travels as a wave of pressure through a medium such as air or water, and it cannot travel through the vacuum of space, since there are no particles to carry the vibration.",
+    "attribution": "Science"
   },
   {
-    "category": "business",
-    "content": "Diversification spreads investment risk across different assets, so that a poor outcome in one area does not sink an entire portfolio.",
-    "attribution": "Business"
+    "category": "history",
+    "content": "The printing press, developed by Johannes Gutenberg in the fifteenth century, made it possible to produce books far more quickly and cheaply than copying them by hand.",
+    "attribution": "History"
   },
   {
     "category": "movies",
-    "content": "Pixar's first feature film, Toy Story, released in 1995, was the first full length movie created entirely with computer animation.",
-    "attribution": "Film"
+    "content": "You either die a hero, or you live long enough to see yourself become the villain.",
+    "attribution": "The Dark Knight (2008)"
   },
   {
-    "category": "philosophy",
-    "content": "All men by nature desire to know.",
-    "attribution": "Aristotle, Metaphysics"
+    "category": "literature",
+    "content": "Not all those who wander are lost.",
+    "attribution": "J.R.R. Tolkien"
   },
   {
     "category": "philosophy",
-    "content": "The Socratic method uses a series of questions and answers to expose contradictions in a person's beliefs, encouraging deeper critical thinking rather than simply providing answers.",
+    "content": "Utilitarianism holds that the right action is the one that produces the greatest good for the greatest number of people, judging morality by outcomes rather than intentions.",
     "attribution": "Philosophy"
   },
   {
-    "category": "programming",
-    "content": "grep -rn \"TODO\" src/ | awk -F: '{print $1}' | sort -u",
-    "attribution": "Shell",
-    "language": "shell",
-    "explanation": "grep -n prints file:line:text, awk splits on the colon to take the filename, sort -u removes the duplicates."
+    "category": "movies",
+    "content": "Toto, I've a feeling we're not in Kansas anymore.",
+    "attribution": "The Wizard of Oz (1939)"
   },
   {
     "category": "literature",
@@ -980,25 +1158,52 @@
     "attribution": "Mary Shelley, Frankenstein"
   },
   {
-    "category": "philosophy",
-    "content": "It does not matter how slowly you go as long as you do not stop.",
-    "attribution": "Confucius, Analects"
-  },
-  {
     "category": "history",
-    "content": "The Renaissance began in Italy in the fourteenth century, sparking a renewed interest in classical art, science, and learning that eventually spread across Europe.",
+    "content": "The invention of the wheel around 3500 BCE is considered one of the most important technological breakthroughs in human history, transforming transportation and trade.",
     "attribution": "History"
   },
   {
-    "category": "business",
-    "content": "Cash flow tracks the actual movement of money into and out of a business, which can differ significantly from reported profit due to timing differences in payments.",
-    "attribution": "Business"
+    "category": "quotes",
+    "content": "Failure is impossible.",
+    "attribution": "Susan B. Anthony"
+  },
+  {
+    "category": "anime",
+    "content": "Life is suffering. It is hard. The world is cursed. But still, you find reasons to keep on living.",
+    "attribution": "Princess Mononoke"
   },
   {
     "category": "programming",
-    "content": "squares = [n * n for n in range(1, 21) if n % 3 != 0]",
+    "content": "int *buf = malloc(len * sizeof(int)); if (!buf) return -1;",
+    "attribution": "C",
+    "language": "clike",
+    "explanation": "malloc returns NULL when it fails, and checking is not optional. sizeof(int) rather than 4 keeps it correct across platforms."
+  },
+  {
+    "category": "general",
+    "content": "The first computer programmer is widely considered to be Ada Lovelace, who wrote an algorithm for an early mechanical computer in the eighteen forties, decades before any machine capable of running it was ever built.",
+    "attribution": "General knowledge"
+  },
+  {
+    "category": "quotes",
+    "content": "That man over there says that women need to be helped into carriages, and lifted over ditches, and to have the best place everywhere. Nobody ever helps me into carriages, or over mud puddles, or gives me any best place, and ain't I a woman?",
+    "attribution": "Sojourner Truth, Ain't I a Woman?"
+  },
+  {
+    "category": "general",
+    "content": "The invention of the printing press in the fifteenth century transformed how knowledge spread across Europe. Books that once took months to copy by hand could suddenly be reproduced by the hundreds, making literacy far more accessible.",
+    "attribution": "General knowledge"
+  },
+  {
+    "category": "programming",
+    "content": "try: value = int(raw) except ValueError: value = 0",
     "attribution": "Python",
     "language": "python",
-    "explanation": "A list comprehension: the expression, the loop, then the filter. Faster and clearer than appending in a for loop."
+    "explanation": "Catching the specific exception, not a bare except - a bare one would also swallow KeyboardInterrupt."
+  },
+  {
+    "category": "anime",
+    "content": "No matter how much I struggle, there's always a price to pay for changing the past.",
+    "attribution": "Steins;Gate"
   }
 ]
\ No newline at end of file