New research highlights a troubling problem with concepts of a cyclical universe that experiences infinitely alternating periods of rapid expansion and contraction. These bouncing universe models suggest the cosmos has no beginning, eliminating the need for a singularity prior to the initial period of rapid inflation needed by ‘beginning of time’ models.
University at Buffalo researchers say a newly suggested bouncing universe recipe that attempts to deal with the problem of entropy – the measure of unusable energy in the universe, which can only increase – suffers from a problem that has plagued previous
