0shuffles.

8.07 × 10⁶⁷

Possible arrangements of a 52-card deck.

More than atoms on Earth — by 100 quadrillion times. Earth has roughly 10⁵⁰ atoms. Every shuffle you've ever done by hand has never existed before, and never will again.

10²⁰

Total shuffles by all humans in history.

That's the estimated upper bound — every card game, every casino, every kitchen table. Against 8.07 × 10⁶⁷ possibilities, it doesn't register.

8.7 × 10³³

Shuffles if every ant on Earth went since the Big Bang.

~20 quadrillion ants × 4.35 × 10¹⁷ seconds. You'd need to run that scenario 9 nonillion times to exhaust every arrangement.

2.5 × 10⁶⁰

Years to see every arrangement at one per second.

The universe is 13.8 billion years old. You have some time.

12,300,339

Shuffles recorded. 142 days. Zero matches.

That covers roughly 0.000000000000000000000000000000000000000000000000000000000015% of all possibilities. (59 decimal places — count them.)