Comment by Dansvidania

Dunning Kruger IMO makes it quite likely that any substantial investment be a bit more like gambling than it ideally should be, as the difference really only exists in the amount of knowledge one has in the industry one invests in.

On the other hand, most financial advice also states that one should not keep more than X months worth of expenses in cash, otherwise one is still losing money on inflation and the likes.

EDIT: Then again, if you are staring at the tickers all day, that might still be a problem.