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by halma 3454 days ago
Does it relate in any way to Von Neumann's trick[1] to create a fair coin from a biased one?

In short: if you don't trust the fairness from possibly biased coin flips, then don't look at individual outcomes in a sequence of (H)eads or (T)ails, but only at H,T or T,H combinations.

[1] https://en.wikipedia.org/wiki/Fair_coin