I wonder how long it'll be until we replace fiat currencies with a balance of kilowatt-hours. It won't be any time soon. A kWh of potential energy is actually

I wonder how long it'll be until we replace fiat currencies with a balance of kilowatt-hours. It won't be any time soon. A kWh of potential energy is actually pretty bulky/heavy if it's stored as anything but nuclear fuel. Different forms of energy are not fungible. You'd either be bartering a large number of actual energy sources, or you'd be exchanging "normalized" energy-currency units whose normalization WRT different forms of energy is set by fiat.