Many people will admit that they made a mistake [putting money in dot-coms or telecoms at their peak] But that doesnโt mean that theyโve changed their mind about anything in particular. It doesnโt mean that they are now able to avoid that mistake.
Daniel KahnemanOptimism is normal, but some fortunate people are more optimistic than the rest of us. If you are genetically endowed with an optimistic bias, you hardly need to be told that you are a lucky person - you already feel fortunate.
Daniel Kahneman