[BIGRED]

Ok, thanks for the search help. I will read about this effect called "bunching".

However, I just want to make my point. You said, as well as others,

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In this case, the fact that people haven't folded means they hold better than average hands. Those better than average hands are more likely to contain aces,...

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Ok, I understand this.


But what I don't understand is this.

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... so the aces don't show up as often on the river as they would if people were sticking around with random hands.

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Well, if you are saying Aces are more likely to be held by someone if the hand goes to the river (which I agree), then isn't it just as likely that that less-valued cards were mucked by the hands that folded before the river?

I haven't read about bunching yet, as I just read this reply. Perhaps this question will be answered in the thread you pointed to.