I suppose we all want to know how each of our decisions will affect what happens in the future; which were the wrong ones, and which were right.
I can't decide what's worse, though. Seeing something I did wrong, and wishing I had done it differently so that things would possibly turn out differently... Or seeing something I did wrong, and knowing that even if I could go back and change it, I would probably make exactly the same decision all over again. Even knowing how it would turn out. Even knowing it would turn out crappily.
I don't think 20/20 hindsight is all it's cracked up to be.