In general, signalling theory says that if you have a good way of proving something and a noisy way of proving something, and you choose the noisy way, that means chances are it's because you couldn't do the good way in the first place.

You could imagine something like a completely automated system for renting bikes that's just done completely over blockchain crypto-payments. And theoretically just sort of start it up, and it works completely autonomously.

Many people at different levels of the Russian government are open to crypto-currencies.

Vitalik Buterin Quotes