> Back the dollar by gold (not socially constructed crypto)
Gold is worth so much in dollars because everyone thinks everyone else also wants it. Sure you can process it for some industrial use, but most of the worth is because "Someone else will also find this worthy").
I have a 100 trillion dollar note (Zimbabwean) in my wallet, is it worth anything? Just the novelty value. Is the $100 (US) note worth anything? Well I can buy $100 worth of groceries, which at the moment is probably 20 cartons of eggs, but the way Musk is doge-ing the nation, it could be only 4 cartons in the near future...