is the aluminum going somewhere? we're mooshing it around into different shapes, and drawing pictures on it, but it's still aluminum which has had inconvenient impurities removed. if you're telling me we've got infinite energy, then what's the problem with mining through landfills to extract the useful stuff?

if we've got infinite energy, then the problem will be when we want to have more aluminum in use at one time than we've got, total.