# Back Cover **The Physics of Energy Flow** derives known physics from first principles as energy transport. Instead of assigning independent ontologies to matter, charge, force, gravity, and curved spacetime, this book starts from one substrate only and asks what must follow if energy exists and flows continuously. The result is a reconstruction in which the Maxwell equations are identified as the complementary rotations of a single flow, with `E` and `B` as complementary aspects of that flow. When the flow organizes in standing-wave patterns, quantization naturally follows. Then, if matter is standing waves of energy flow, gravity follows. This is not a denial of mathematics. It is a refusal to mistake mathematical maps for the territory they describe.