Here Buckminister predicts that the price of energy will become so stable that it will be the favored benchmark for valuation and currency denomination. Laughable - for the next few centuries at least - and the opposite of what's happening, as solar prices are plummeting, halving and halving again. I went to one of his lectures back in the day and remember equally laughable advice about worldwide electricity pooling that should happen immediately. Suggestions that were physically impossible (but BF didn't think we'd have to wait for superconductivity to do this apparently, or that it was nearly here) and obviously, have never happened. My electrical engineer father, who worked for a power company, snorted.

We obviously aren't going to have one catastrophically interdependent grid distributing energy from a few sources, either.

FWIW There's an interesting debate between an author and Einstein during the 1930s on whether energy is the limiting factor in economics, or human labor is, as Marx said. Einstein took Marx's side, but our more automated world tilts the other way a bit more every day.

No Buckminister Fuller didn't predict PoW, Bitcoin etc, in any way.