I think that answer is more than a little flip. Certainly when you consider it's the highest up-voted answer. For such an answer, I'd like to see a broader discussion over value stores (gold, fiat, crypto). I know gold mining is very resource intensive with lots of undesirable by products. That being said, once you mine an ounce of gold, like bitcoin, it last forever. Fiat money, of course, takes almost zero energy to create. It's just a journal entry on some central bank's ledger system.

That's just the creation side. On the use side, there are broadly different costs in using and maintaining gold-based, crypto-based and fiat-based money systems. I would like to see others way in on this.