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Jun 19, 2016 at 1:01 comment added user65081 second, I do not believe that the arrow of time or the entropy decreases just because the universe is bouncing back. I never heard a coherent reason as to why this should be so. So, I disagree.
Jun 19, 2016 at 1:00 comment added user65081 @PeterR first, I will agree with you that using the second law to account for the arrow of time is not universally accepted, however I believe that the majority of physicists believe on that explanation.
Jun 19, 2016 at 0:33 comment added user65081 @PeterR do you mean instead that if the universe contracts the entropy begins to decrease? otherwise why would the arrow reverse?
Jun 19, 2016 at 0:31 comment added Peter R Entropy always increases with time but there is no reason to assume that entropy controls the direction of time. Hawking acknowledged that he was wrong when he assumed time would reverse if the Universe contracted and entropy began to increase.
Jun 18, 2016 at 23:16 history answered user65081 CC BY-SA 3.0