Cryptocurrency discussions on HN often feel like 90's me discussing how fax machines would be obsolete, not because the Internet offered a better solution at the time, digital signatures were not binding afaik so this was a real barrier, it was because I could see what was down the line, the progression, while sporadic was to a degree predictable, the first time I used video or played games on a phone, I knew other people would want this, same with the first online payment systems, to entertain the idea that the cryptocurrency world in it's entirety is a worthless sham is to miss a lot of very interesting people doing a lot of very interesting work, I hope I'm around to see something worthy come out of the space, it would not surprise me if it takes another 10 years or 6 months.

Look at the history of railways and canals, no one was really disputing that they were game changers, yet the level of fraud, hype and failures is not dissimilar to what we see in this new world, it doesn't automatically mean the idea itself is a dud.