Survival of the fittest

For many of us, our personalities must be shaped by our childhood and growing-up experiences. I have no rigorous knowledge of such issues but experts say that and it does make sense. What's interesting is that while talking to many investors, I have slowly come to realise that something similar happens in our investing lives. When we just start investing, the first few years shape our thinking and attitude for the rest of our investing lives. We see those as normal and everything that deviates from that as simply something that will revert to mean later. Does anything change this ever? When I put it like that, a lot of you would be tempted to say that no, people never change.