I don't think it's right to say they will tank and then come back. In terms of opinion they went 'This is an idea' -> 'This will solve everything' -> 'Hang on t

I don't think it's right to say they will tank and then come back. In terms of opinion they went 'This is an idea' -> 'This will solve everything' -> 'Hang on that's rubbish, they won't solve anything!' -> 'Oh, yeah that's just another thing that exists in the world'. Meanwhile, in reality, they went from 'This is an idea' -> 'Hey, we can solve a few interesting problems with this' and then split. The people who know how to develop technology built some interesting limited applications, and then scaled into more powerful stuff. The people who don't really know anything about technology will have bought into overhyped projects, they'll never go anywhere and get canned. The second one is a pretty reasonable way for technology to evolve, the problem is that people aren't looking at what's happening, they're looking at 'influencers' and 'commentators' who are more interested in selling their opinions than talking about the technology.