Surely some of it is a waste. Even for the latest, hottest cryptocurrency. The question is: how much energy is wasted versus the alternative, and does the utili

Surely some of it is a waste. Even for the latest, hottest cryptocurrency. The question is: how much energy is wasted versus the alternative, and does the utility justify it? Depending on speculatively large future-values of cryptocurrencies is probably not the right way to evaluate the externalities, here.