dhw: I'm afraid I still think your heading “pure energy theoretically exists” is as pointless as “multiverses, 11 dimensions and invisible orbiting teapots theoretically exist”, and all the other theories so eloquently dismissed by Neil Turok under “Far out cosmology” (for which many thanks).-My only point was to show you that despite Matt Strassler poo-pooing the energy matter debate as inseparable two parts of the same thing, cosmologic physicists are currently considering the existence of pure dark energy. God can be pure energy.