I hate fiat currency. I have never understood the arguments against it, and I am all too aware of the abuses we suffer as a result of it. That being said, what can we replace it with? Gold and Silver (specie) has historically been what money was based on, but people are all too willing to point out the flaws in a Gold or Silver based system.
I had an idea today. It is not a new idea, but I never paid it much attention before. I have a new found respect for it. It is the idea of creating a monetary system based on energy, i.e. Calories, KiloCalories, BTUS, Ergs, Watt-Seconds, KWH or whatever.

The point is, a government can't F*** with it. They can't debase it because it can be defined by scientific means and consensus. Energy credits can be the unit of exchange that can replace existing currency.
Does anyone have any idea of what the downside might be?