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> "Something physical (an abacus, say) could potentially be manipulated by slight of hand or optical illusion." That's true, but people often overestimate thei
by catalogia 7y ago
> "Something physical (an abacus, say) could potentially be manipulated by slight of hand or optical illusion."
That's true, but people often overestimate their ability to see through such ploys. That's why the shell game (https://en.wikipedia.org/wiki/Shell_game https://en.wikipedia.org/wiki/Shell_game) is thousands of years old and still going strong, across the world.