xaphod·قبل سنتين·discussThis reminds me of this old Feynman video where he talks about how people use different methods in their heads when counting, seems relevant: https://youtu.be/Cj4y0EUlU-Y?t=135
xaphod·قبل 3 سنوات·discusschess.com has different "AI players" with personalities that you can play against.