Interesting article.  There has been much ado about how much electricity bitcoin requires, and it cannot be argued that it doesn't require a lot.  It does.  What society does have is a great deal of electricity, and whether that's bad for the environment or not is a debate of its own but what I would say is that if it ever comes to pass that society falls into a crisis whereby the grids are disrupted, we are all in serious trouble and bitcoin failing will seem trivial.  It won't even matter to most people.  They will be trying to conserve resources, and those will be the most basic things needed for survival, like keeping the power on in hospitals and so forth.

That would be highly amusing to see that happen.  In any event we have plenty of power, as I said.  If and when it becomes a concern, society will have more problems than anything the banking system could produce.  Buy land, seeds, and firearms.