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Anonymous
>>854285 He's part of the problem. You see, this illusion doesn't have the impact in this presentation as it does on those disks your rotate the outer or inner edge and the people automatically swap. In fact, you get a better explanation of how this trick works.
Take the left side of the picture: 5 guys and the exchange section has 5 heads. After exchanging the tops, the right side of the picture has a group of 5 guys too.
Take the right side of the picture: 8 guys and the exchange section has 7 heads. After exchanging the tops, the left side of the picture has a group of 7 guys. It's because that guy with the flatten head doesn't get moved.
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