PoW is an awful use of energy with close-to-zero wealth created. Wealth in the original sense of the word. I see them as transferrable autographs, and would be

PoW is an awful use of energy with close-to-zero wealth created. Wealth in the original sense of the word. I see them as transferrable autographs, and would be down to own even small shares of my favourite artists' work, but their energy usage is untenable.