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Ádám Szilvási's avatar

So many people here find great problems for every solution.

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Dan Schroeder's avatar

I'm just not sold on the usefulness of "final energy". Why should anyone care about such a quantity? We care about cost. We care about emissions. We care about hot showers and cold beer. To the extent that we care about "energy" in the abstract, it's only because we can sometimes substitute one energy source for another. But if the substitution of one source for another involves a big efficiency gain (or loss), what's the point of adding the two sources together without taking that efficiency difference into account? All you do is confuse people and make articles like this one necessary to try to undo the confusion.

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