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Fact-checked learning cards, browsable by topic โ every card cites real sources.
- ๐ป100 cardsCodeProgramming, computer science and hacker lore.
- ๐ญ121 cardsCultureArt, music, food, traditions and how humans express themselves.
- ๐คช106 cardsFun & WeirdWeird-but-true trivia and delightfully useless facts โ the stranger the better. Famous 'facts' that are actually myths get busted, not repeated.
- ๐ซ149 cardsHealth & BodyNutrition, sleep, exercise and how your body actually works.
- ๐๏ธ85 cardsHistoryEvents, people and turning points that shaped the world.
- ๐ฃ๏ธ97 cardsLanguage & WordsWord origins and linguistics, plus everyday basics from world languages โ greetings, counting and phrases, always written in the native script (ใใใซใกใฏ, ไฝ ๅฅฝ, ู ุฑุญุจุง) alongside romanization and pronunciation.
- ๐ฐ96 cardsMoneyEconomics, personal finance and how value moves through the world.
- ๐ฟ107 cardsNatureAnimals, plants, ecosystems and the living world.
- ๐ญ110 cardsPhilosophy & IdeasThought experiments, ethics and big ideas explained simply.
- ๐ง 121 cardsPsychologyHow minds work โ cognition, behavior, biases and mental health.
- ๐ค100 cardsSalesPractical sales and persuasion tactics โ small, evidence-backed techniques you can use in your next pitch, negotiation or conversation.
- ๐ฌ96 cardsSciencePhysics, chemistry, biology and the scientific method โ how the universe actually works.
- ๐120 cardsSpaceAstronomy, spaceflight and everything beyond the atmosphere.
- โ๏ธ95 cardsTechTechnology, engineering and the ideas behind the tools we use.