On Sunday, December 23, 2018 at 3:27:35 AM UTC, [email protected] wrote: > > > > On Sunday, December 23, 2018 at 3:04:07 AM UTC, Bruce wrote: >> >> On Sun, Dec 23, 2018 at 1:17 PM John Clark <[email protected]> wrote: >> >>> On Sat, Dec 22, 2018 at 6:46 AM <[email protected]> wrote: >>> >>> *> If the temperature was non uniform when the BB occurred, if it >>>> occurred, why would a sudden increase in its volume, aka inflation, erase >>>> or wash out those non uniformities?* >>>> >>> >>> Regardless of how non-uniform the entire early universe may have been if >>> you kept looking at smaller and smaller volumes you'd eventually find a >>> size where thing were pretty uniform. >>> >> >> On what do you bas that assumption? Penrose makes the point that there is >> no reason to suppose that the initial state is not fractal -- grossly >> unsmooth on any scale, right down to the smallest! >> >> >>> If inflation theory is correct that small nearly uniform part of the >>> universe started to expand exponentially; that is to say it had a fixed >>> doubling time, every 10^-37 seconds the diameter of that small part of the >>> universe doubled, and in 10^-35 seconds it doubled a hundred times and >>> became our observable universe. It has continued to expand to this day but >>> at a much much more leisurely rate. >>> >> >> It has been pointed out many times that inflation is a model in search of >> a problem to solve. Monopoles and flatness are not really problems, and >> inflation does not solve the smoothness problem - vide above. >> > > *I've haven't resolved how inflation solves the smoothness problem (as > many claim) -- maybe it can't and thus is the cause of my puzzlement -- but > isn't the flatness problem a real problem that IS explained by inflation? > If not, why? AG * >
*Agreed. My objection wrt flatness not worth a reply. The Oracle from Australia has spoken. AG * > > >> Bruce >> >> >>> >>> >>>> > *OTOH, if the initial temperature were uniform, would that obviate >>>> the need for inflation, or would non uniformities tend to become manifest >>>> were it not for inflation?* >>>> >>> >>> Without inflation its very hard to understand how the temperature could >>> be uniform because there wasn't enough time for the temperature to >>> equalize, the distance parts of the universe were neven is causal comtact >>> and yet they are at the same temperature to one part in 100,000. >>> >>> John K Clark >>> >> -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
