Employing thousands of human beings and computers and offices for processing simple transactions is wasteful too. Both using a bank (with outdated system) and "being your own bank" cost energy
Yes of course. It's a matter of efficiency. Certainly they aren't doing so optimally.
I'm not even trying to make any claims on magnitude. Just saying it's pretty clear if shipping/housing gold changes to bitcoin, if some amount of finance activity changes to Ethereum or some kind of DeFi, then this is not purely additive. It's replacing, and the article doesn't account for this
