[OC] 8 Perfect Shuffles: Shuffling a deck of cards perfectly 8 times will return it to its original order. seems remarkable, but here is the visual proof/movement of the cards. Might not fit here, but thought I would share! Some other cool phenomenon can be seen in each shuffle!
from /r/dataisbeautiful
[OC] 8次完美洗牌。把一副牌完美地洗8次，就能把它恢复到原来的顺序。似乎很了不起，但这里有视觉证明/牌的运动。可能不适合放在这里，但我觉得应该分享一下! 在每次洗牌中还可以看到其他一些很酷的现象!