This is a fair point, but in no way contradictory of what I said above.
You may have assigned too much
equity for a single
draw. If you face a bet on the
flop that is not
all-in, then it is a mistake is to count the
equity for 2 draws instead of 1 when estimating your EV for that
call. (This might be a
spot to semi-
bluff shove, btw.)
When I say you need X%
equity to
call a bet, that's total
equity on all later decisions. This is something that is difficult to estimate, even as an intermediate
level player, but it's an important idea in the long run. It's something to be mindful of, while you direct your
study to more profitable areas.
Thank you for clarifying this point, though.
Afterthought:
In your example above, you'd assign
villain a
range, based on all previous actions you've observed. You'd examine the
stack sizes and make a guess as to how much he'd bet on future streets, given various board runouts. Then you'd apply math and determine the "true"
equity of your
call. Obviously, this is complicated and relies on a lot of assumptions. The math is all simple algebra, but there's a lot of it to keep track of, and again... at the beginner
level of poker, you have much more profitable ideas to learn about.