paradoxes The paradox of The Bottle Imp Mark Frauenfelder

paradoxes The absent-minded driver’s paradox Mark Frauenfelder

paradoxes 20 amusing paradoxes and dilemmas to ponder Mark Frauenfelder

paradoxes Unanimous decisions are less reliable Mark Frauenfelder

puzzles The Missing Dollar puzzle from Martin Gardner's Aha! Gotcha book series Mark Frauenfelder

Funny Four sets of identical twins pull an epic NYC subway car time-machine prank Cory Doctorow

books Paper Girls 5: fate and free will (and dinosaurs and monsters) Cory Doctorow

late stage capitalism The paradox of good government: the best stuff works well and is thus unnoticeable (and therefore easy to sell off) Cory Doctorow

happy mutants Brain-aching list of counterintuitive probability riddles Cory Doctorow

optical illusions Impossible objects, explained David Pescovitz

optical illusions The Playful Eye is a virtual feast of games and visual tricks gathered from around the world Kevin Kelly

picks Star Wars icon Carrie Fisher dead at 60 Xeni Jardin

books China's "ultra-unreal" literary movement takes inspiration from breathtaking corruption Cory Doctorow

tmsidk Cartoonist Paul Hornschemeier [TMSIDK 29] Tell Me Something I Don't Know