Daniel Kahneman is emeritus professor, Princeton University
He is a Nobel Prize recipient
But, don't let those bias you against what is some spot on advice from him:
"What hindsight does is it blinds us to the uncertainty with which we live. That is, we always exaggerate how much certainty there is. Because after the fact, everything is explained. Everything is obvious. And the presence of hindsight in a way mitigates against the careful design of decision making under conditions of uncertainty."
I see this all the time in financial markets. Even guilty of it myself.
Comments welcome.