In a dual universe, we can expect to observe acceleration outward, for the macroscopic (astronomical; big bang) antipode of the side we inhabit at our reference frame is the "black hole"(submicroscopic singularity) of the antiverse. We are looking across time to a different cosmological era, whether we look inward or outward. The submicroscopic antipode when looking outward is not geometrically "now" in that direction, but it is eternally "there"...and we can "see" it... in acceleration outward.

Best Wishes, Sam Cox