On Sunday, October 11, 2020 at 4:25:04 AM UTC-6, Lawrence Crowell wrote: > > > > On Saturday, October 10, 2020 at 8:52:58 PM UTC-5 [email protected] > wrote: > >> >> >> On Saturday, October 10, 2020 at 5:25:35 PM UTC-6, Lawrence Crowell wrote: >>> >>> >>> >>> On Saturday, October 10, 2020 at 5:32:25 PM UTC-5 [email protected] >>> wrote: >>> >>>> >>>> >>>> On Saturday, October 10, 2020 at 1:03:00 PM UTC-6, Lawrence Crowell >>>> wrote: >>>>> >>>>> On Friday, October 9, 2020 at 12:27:00 PM UTC-5 [email protected] >>>>> wrote: >>>>> >>>>>> >>>>>> >>>>>> On Friday, October 9, 2020 at 3:53:46 AM UTC-6, Lawrence Crowell >>>>>> wrote: >>>>>>> >>>>>>> I read this yesterday. It so far appears there is no data to support >>>>>>> information from a prior cosmic cycle. >>>>>>> >>>>>>> Penrose did ground breaking work on the nature of black holes and I >>>>>>> think his crowning achievement in mathematical physics is twistor >>>>>>> theory of >>>>>>> the mid 70s. His CCC theory is a bit like Hoyle's steady state theory >>>>>>> in >>>>>>> that it is a sort of intended obstruction to a more successful theory >>>>>>> that >>>>>>> is gaining support. >>>>>>> >>>>>>> LC >>>>>>> >>>>>> >>>>>> *Please clarify your last sentence above. What "more successful >>>>>> theory" are you referring to; the hot BB with inflation? AG * >>>>>> >>>>> >>>>> Primarily back then it was just BB. Now with inflation a much wider >>>>> range of problems have been solved, and it is supported by CMB data. >>>>> >>>>> LC >>>>> >>>> >>>> *Has anyone proposed a Cold BB, which seems illogical since one can >>>> imagine an expanding universe backward in time; that is, contracting and >>>> getting denser and hotter? AG * >>>> >>> >>> As a rule the more a gas is compressed the hotter it gets. >>> >>> LC >>> >> >> Of course. Does that mean a COLD BB has never been proposed because it >> defies our understanding of how a contracting gas behaves? AG >> > > Yes. > > LC >
*TY. Then it cools as it expands. But why do some, or is it all BB theories, propose a "reheating" phase? How could it reheat if it is still expanding? What's the need for reheating? AG * > > >> >>> >>>> >>>>> >>>>>> >>>>>>> On Friday, October 9, 2020 at 2:19:36 AM UTC-5 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> >>>>>>>> https://www.forbes.com/sites/startswithabang/2020/10/08/no-roger-penrose-we-see-no-evidence-of-a-universe-before-the-big-bang/#20f18bb97a0f >>>>>>>> >>>>>>>> <https://www.google.com/url?q=https%3A%2F%2Fwww.forbes.com%2Fsites%2Fstartswithabang%2F2020%2F10%2F08%2Fno-roger-penrose-we-see-no-evidence-of-a-universe-before-the-big-bang%2F%2320f18bb97a0f&sa=D&sntz=1&usg=AFQjCNHBWIQJ6quHjlk6kdtI8LFN35X46A> >>>>>>>> >>>>>>> -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/bbff09cb-e09f-4e8c-966a-beb5d7dde7a1o%40googlegroups.com.
