> How sustainable is the power source? Oil (and such and such) will last a 100+ years and obviously won't destroy the planet in that time. I'd call that susta

> How sustainable is the power source? Oil (and such and such) will last a 100+ years and obviously won't destroy the planet in that time. I'd call that sustainable. And given it's just a "power source", at any time we could swap it out for X, Y, Z. Plus they specifically talk about efficiencies in the article? Not sure your point at all? I haven't seen huge drops in energy cost across the world? Electricity seems the same or more than the 1990s?