Meh, I'm no bull but I also don't think "cryptos are mostly useless" is accurate. I believe there are solid use cases for distributed global ledger and digital replacement for cash. Is Bitcoin the winning/best manifestation? I doubt it, we likely need something much more energy efficient (like Chia is trying to be). But I don't think the idea is bust. It just isn't as overwhelmingly applicable as people dreamed it might be. We're trying out use cases, vetting the good ones and sometimes painfully learning the which ones were stupid or bad ideas. And once all the speculation settles, I do think true currency is still a viable one. Logistics and markets are another, etc.