"Cryptocurrencies are everything people don’t know about computers combined with everything they don’t understand about money."
Probably John Oliver, but I tried to (lazily) find the actual source and couldn't.
Yes, it is John Oliver. Try this— https://medium.com/@michaelmolnar/why-blockchain-matters-21be03fb01b8
In fact try YouTube here for Oliver actually saying it—around 1 minute in.