Fragments of energy may be the fundamental building blocks of the universe

"Our theory begins with a new fundamental idea – that energy always “flows” through regions of space and time."

New fundamental idea? This is as old as the earliest theories of radiating bodies, at least. Heat flow and heat transfer, the most fundamental and solid science that exists. Heat flows everywhere in the universe constantly, and at all heat sources in space, gravity is heat´s companion making matter flow in the opposite direction.