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Re:A previously unnoticed property of prime numbers by hellofunk on Monday March 14, 2016 @11:01AM (#11283202)
I thought the article was saying Alice must get a head followed immediately by a tail. If that's not the case, then it makes total sense, but it would seem the article is a bit vague about that.

Actually, the details in the article say:

>even though head-tail and head-head have an equal chance of appearing after two coin tosses.

That implies that the tail is expected immediately after the head for Alice's goal.

Re:A previously unnoticed property of prime numbers by thefreeman on Monday March 14, 2016 @11:20AM (#11283320)
Correct, but the point is if Alice doesn't get a tail, that means she got a head, so she is still in the same position as she was before the flip, only needing a single tail to complete the sequence. If Bob gets a head, then a tail, he now needs two consecutive heads to complete his sequence.
Re:A previously unnoticed property of prime numbers by frobozz on Monday March 14, 2016 @11:37AM (#11283426)
The only way she can get a tail which isn't immediately after a head is to never get a head in the first place.