That's a good point. I've had the same: I lost a bet on HN for a hundred bucks that Facebook would never break a billion in revenues. I - mistakenly - thought people would not be so stupid as to hand over their private lives to the likes of Mark Zuckerberg. But they did.

NFTs are just as stupid, if not more so and this time at least it looks like sanity prevailed. But the problem is more complex than just boolean 'made' or 'fail', and I think that's where the investment angle comes in. Investors bet on 'the next wave' all the time. And NFTs looked to the clueless as much as 'the next wave' as mobile phones or the transistor did at some point in time. The big differentiator to me is whether or not a thing like that requires a belief system or not. If it does then I don't give it much chance. But then we have all of crypto as a counterexample and quite a few people got stupidly rich peddling that.