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The birthday paradox applies if you are asking about the probability that any two shuffled decks throughout history have matched each other, not the probability
by chimeracoder 15y ago
The birthday paradox applies if you are asking about the probability that any two shuffled decks throughout history have matched each other, not the probability that a shuffled deck throughout history matches the exact deck you have in your hands today.
- cq 15y agoThe title of this article as posted on hacker news is "A shuffled deck of cards is unique in all human history". Note that it does not say "If you shuffle a deck of cards, it will be unique in all of human history," which is the argument that the actual article is making. The article title here is logically equivalent to "Any shuffled deck of cards is unique in all of human history" which is logically equivalent to "No two shuffled decks of cards in human history are equivalent". Therefore, the title of the article as it appears on hacker news needs to be changed
- TheSOB88 15y agoI don't think it's that important, really