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TIL that a mathematicisn named Danny Hillis built an analog computer that plays tic-tac-toe out of nothing but tinkertoys : r/todayilearned
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Amazon.com: Danny's Activity Book: Ninja 100 + Fun Activities | Ready to Play Paper Games + Blank Storybook & Sketchbook Pages for Kids | Hangman, Tic Tac Toe, ... Name Letter D
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