It takes critical thinking, which I formally learned after my economics coursework.  So, yes personality, but also learning and conditioning. Those with the personality trait get it sooner, I think. I had to learn to unlearn, which takes longer. 

TNStacker

Stacker Saloon

saloon

I actually discussed Bitcoin with one of the coolest economics teachers recently, and he agreed with me that Bitcoin is the future. 👀

And I remember that this teacher always got into trouble by teaching students how to think and rarely following the books; Maybe it takes certain personality to actually get Bitcoin.