I was wondering... When nuclear fusion becomes a thing in "the next 30 years", i.e., almost infinite and free energy production, what do you think will happen to proof of work? Will make the bitcoin consensus stronger or weaker?
If nuclear fusion is going to be centralized, as it seems for now (look at the ITER), then I think it can be a problem. Nation-state attacks could be feasible.
we have been promised fusion for 70 years now. we don't seem any closer to reality. its been at 20 years off in time.. the entire time. the problem is containment. ultra hot plasma containment.. we manage to hold it for i think tops so far is a few seconds before it gets unstable. ultra hot plasma is so hard to contain you use All the energy you have created in the fusion process to generate super magnetic fields to contain it.
2 main types of reactors are still undergoing trials,
Tokomak < this is an old style that has never worked more then a couple seconds.
Stellarator. This style is fairly new and is very complicated but shows promise but who knows.
Both are hugely expensive to build.
Neither is anywhere near ready.