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 Originally Posted by LeFou
The question really is What makes a mistake huge? The size of the pot you lose /would have taken? The size of the disparity between your read and What was Really the Case? The cumulative sum of -EV if you make that play every time...?
discuss?
To me the only factor, by necessity, is EV. You can't control short-term outcome; you can't control misreads or freak occurrences (like say, a guy bluffs you 99 times in a row and then on hand 100, he gets aces and does the same thing, and you call him with kings). All you are interested in with ANY poker decision is EV, no matter how hypothetical/unknowable that concept becomes when you start trying to sort it out. When talking about small and big mistakes, I think it's a small mistake if your EV drops slightly (say from slightly +EV to slightly -EV, which is where a lot of folds fall). It's a large mistake if your EV drops significantly - which usually means from -EV to really, really -EV (i.e. folding when you are beat vs. calling).
In this case the very idea that folding this could be a large mistake is only possible if 1. you think his range of hands contains mostly hands you are way ahead of (i.e. his raise is a form of bluff, or a misguided value bet with a low pair or Ax); or 2. you think you have a lot of his possible hands dominated, and are a small favorite over many more of his hands, and are dominated by only some of his hands, in such a way that the net EV is largely and not just slightly positive. 1 and 2 are really the same thing, of course, but 1 involves a specific read (that the hero here did not have) and 2 is basically fudging the numbers to allow the hero to do what he obviously wants to do, which is raise. I don't see how either of these positions is in any way supported by the facts of the case, which is why I think it's safer to chalk it up to a "small mistake or small correct play" grey area, fold, and move on.
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