Comment by throw0101d

> I look forward to your weather report too: "It's always sunny outside until one day it starts raining. Every time."

I once ran across the comment that if you simply predict tomorrow's weather will be the same as today's you'd be correct 80% of the time. Not sure how true that is (can't find the source).

Allegedly momentum investing does pretty well:

* https://en.wikipedia.org/wiki/Momentum_investing

(I'm more of an index guy myself.)