may be you care but u (or anyone) do not know most of them, so why bother how do you know why i buy? those reasons has nothing to do with reasons why price changes one may buy based on valuations, another one may buy because sun rises or just felling good about himself and when one buys on the support it also has no relations to the reasons why price moves, only to his vision of the market i understand what you meant imho the only reasons trader should move his finger is because his method tells him too , and that has no connection to the reasons why and where price moves, only how it moves