> Part of me thinks the worst thing I ever learned about was market efficiency. Once you've heard that argument from a professor, you can apply it to just about anything.

This is a really astute observation.

Both my parents were economics professors and I have a degree in economics. I feel like this concept was instilled in my core, and poisoned my thinking, but it’s fundamentally not true.

I’ve come to finally learn in old age that the market is full of inefficiencies that can be exploited, they are everywhere.

If you’re reasonably smart, or even just well-informed on a specific subject, things that seem obvious and trivial to you will in fact be observations you can profit from.

The world is full of $20 bills lying on the ground to reference a popular punch line.