Sure, they're all 'unique', but has anyone ever actually compared every snowflake to check? I mean, there's got to be SOME that are pretty much the same, right? Just how would you even prove they're all one of a kind?

Impressive streak! I've been an ice-bath junkie for years now, and I suggest alternating between hot and cold if you're planning to go that extreme again. It's called contrast therapy, good for circulation. And it might save your toes from becoming actual popsicle sticks next time.