To solve that problem, we just have to build a Dyson sphere to harness the sun so we do have enough energy. The sun makes energy from mass so we have to reverse

To solve that problem, we just have to build a Dyson sphere to harness the sun so we do have enough energy. The sun makes energy from mass so we have to reverse that process with an energy-to-mass factory. I don't see why that shouldn't work, it's just physics.