But it did not have to exist. The potential for the BB may have been the instant before the BB. (t0 + BB) = t1 The way I visualize infinite existence is equal to instantaneous existence. You cannot tell the difference. Infinite time becoming expressed in a single instant = single instant. There has to be a chronology from beginning to end. Infinity has no chronology. Else you end up with the circularity of the time being the duration of time, without change.