Right. Energy analysis is cool, but it places a lower bound on the amount of work needed, that's all. If you're only counting energy needed to raise stones, th

Right. Energy analysis is cool, but it places a lower bound on the amount of work needed, that's all. If you're only counting energy needed to raise stones, then you're costing at zero a piece of stone, cut and transported to ground level near the pyramid. But that is hard work.