A super interesting article you wrote here which taught me something about BTC that I never really researched. Well, back in 2013 I read about this but forgot about it again. Your conclusion is cool, I use those arguments when I try to explain BTC to someone who doesn't know crypto. That said, I usually start at why digital money is like the digital numbers on someone's fiat bank account :)

Agree: the solution is not super nice with all this energy consumption and the number of transistors we have to create. That said, if we can turn all these datacenters to use green energy only, we already made a step towards a better solution :)

What do you think of the few large BTC miners and the possibility for these companies to work together forming a 51% majority? Don't know the exact number of companies required, but this can't be a lot these days.