Why is t in (-infinity, +infinity) less mysterious than t in (0, infinity)? Ther...

		Certhas on July 14, 2023 \| parent \| context \| favorite \| on: Age of universe at 26.7B years, nearly twice as ol... Why is t in (-infinity, +infinity) less mysterious than t in (0, infinity)? There is no reason to assume that everything has a cause. It is perfectly logically consistent to have things without cause in the universe.