There's always the sweet spot, but like almost everything involved with predicting the future you rarely know what that is. So you take an educated guess and do

There's always the sweet spot, but like almost everything involved with predicting the future you rarely know what that is. So you take an educated guess and do what feels right, and the people you know and the media you consume paint that normal for you. Hopefully you don't have a warped perception, because you won't know under after the damage is done.