Rpietila calculates that if crypto-currency can be used by even a small segment of the world's population, then the market cap has to rise to those lofty levels.

He genuinely believes that. It is not some ploy.

My disagreement with him is that there are other powerful interests trying to be the one to spread electronic money globally, e.g. Apple Pay, Paypal, and now even IBM is going to fork Ethereum.

Something amazing is going to happen, it just isn't clear yet whether we small investors can be part of it or not.

We developers need to do everything within our abilities to make it so.

So rpietila may or may not choose the correct horse and racetrack. But he will not be wrong about electronic currency taking over globally.

Edit: why do I defend rpietila? Because I dealt with him on silver trades in 2008/9, and I observed his ethics. He bent over backwards to make sure I was not harmed in deals, even those where his counter party screwed him over.