Fascinating. Due to the sheer number of possible deck of card outcomes, everytime you shuffle, it is likely your deck is unique in human history.
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The number of possible outcomes of shuffling are 8.0658 x 10 to the 67th power.
The 52-card deck has been in use since about 1300 A.D.
If all 7 billion people today had shuffled a new deck once per second for the last 700 years straight, it would only be 1.546 X 10 to the 23rd power. (clearly, there have been far, far, far less shuffles than that)
If you shuffle up a deck right now, it is less than 1 in 10 to the 44th power likely that the same sequence was shuffled during the prior 700 years of our thought experiment.
In other words, practically impossible.
Every shuffle is unique.
- Source (www.matthewweathers.com)
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