I don't actually invest in cryptocurrency, but I did find Tim Ferriss's recent podcast with Nick Szabo to be fascinating. He's really interested in potentials for smart contracts and such, but it's a pretty theoretical look at where we could be going with cryptocurrency beyond just the "gold rush" days of today when people are just trying to get rich.
I thought one of the funniest lines was when he said that people he knows in law enforcement are starting to see blockchains as "prosecurtion futures" once they start to be able to unravel them efficiently.
http://tim.blog/2017/06/04/nick-szabo/