You, IMO, seem to be perplexed by the use of word stretch, I will take that later in new post but meanwhile, pl see below another extract.. "Before we proceed we must cross the bar and explain the null result of Michelson Morley Experiment . They were expecting presence of relative motion between the Earth and the ether, presuming ether as matter. But the cosmological quantum field is not matter and no ether wind or cosmological quantum field wind exists. The gravity is the direct detection of presence of stretched cosmological quantum field. Only when the stretching is beyond certain critical point, the matter forms, thus the cosmological quantum field stretched below this critical point can only be observed manifesting itself as gravity."