Are you a seasoned investor and yet you regret making decisions on certain investments? In other words, have you ever thought about going back in time and "do-over" some of your investment decisions? There was never an investor who didn't want to do this. Yes this is a common trait in most of the investors.  What makes us stick to some of these decisions which turn out to be worthless with the passage of time while other decisions might be the reason you become a billionaire. The answer lies in this article: http://blogs.wsj.com/experts/2015/05/05/in-investing-and-in-business-dont-trust-your-feelings/