Well if you have the time to take this crash course
Crash Course Chapter 1: Three Beliefs | Chris Martenson
which takes over 3 hours, so you need patience,
And then get to its conclusions, you might have one answer.
I'm told by the expert here that it is 1) "a 101" in economics and that its conclusions are 2) "a given". The first didn't surprise me but the second???
I thought it was quite scary.