Increased Rate of Expansion

Something is causing the expansion of the Universe to speed up again. Some would like to slap the label dark energy or dark matter on. I propose a different theory. It is said that the Universe has sped up it's acceleration rate one time in the past during the first time of the Big Bang around when the photon Epoch occurred. That is where most of the matter in the universe was in the form of photons. Which have no mass. Which would exert no gravitational pull on the Universe which would allow the Universe to expand at rapid speeds. Our Universe has many many stars hard at work converting the star mass that holds the expansion rate in check into photons which do not limit the expansion rate because they are massless. The more photons there are cruising around in the vacuum the faster the expansion rate can increase. Like Global warming but with space. Kind of. Not really.