Every time you shuffle a deck, you create a unique universe

How many ways can you arrange a deck of cards? - Yannay Khaikin · 3:42 · Video: TED-Ed · Watch at the source

In short: You are likely holding a sequence of cards that has never existed in the history of humanity. This video explores the staggering mathematics of permutations and why factorials make the variety of a simple 52-card deck nearly infinite.

The sheer number of ways to arrange a standard 52-card deck is governed by factorials. Because each card drawn reduces the remaining options, the total number of possible permutations reaches a scale so vast it defies human intuition.

This means that every time you perform a thorough shuffle, you are almost certainly producing an arrangement that has never been seen before and will likely never occur again.

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