Earlier quoted context omitted.
This is why I don't follow how my portfolio is doing, knowing doesn't give me much actual information and can often encourage bad behavior (admittedly I don't have many investments compared to many).
My philosophy is essentially buy low, hold forever. I don't put money that I might realistically need in the market
> I don't put money that I might realistically need in the market
While it's great that you might have a time horizon far, far into the future, not everyone has that luxury. In theory, I'm supposed to purchase a home & start a family around this point in my life, so that's a rather quick time horizon for at least some portion of my wealth.