And the only thing they ever did was guessing a hash.
Our economy needs enough chips without demand from Bitcoin. The only thing this did was making it more expensive for everyone.
I'm serious when I say that if there was less asic demand in 2015 and 2018, no matter what the asics were for, that might have reduced the asic capacity in 2021 enough to make the problems we had even worse.
Fabs (especially the ones who can build the chips we talk about) are not build on a crypto hype and also not build short-term.