Thermodynamics and the Future of Energy

In the early universe, we didn't have a smooth and homogenous blob of stuff in the very beginning. Gravity requires some clump to get things started. If you have the true heat death of the universe where everything is spread out equally, then every particle feels the same gravitational pull in every direction. So it basically cancels out. What does this idea of entropy? How does that impact our definition of energy? Like maybe it's not real or something?