On Fri, Jun 5, 2020 at 7:16 PM Jason Resch <[email protected]> wrote:
> On Mon, Jun 1, 2020 at 8:51 PM Bruce Kellett <[email protected]> > wrote: > >> On Tue, Jun 2, 2020 at 9:59 AM Jason Resch <[email protected]> wrote: >> >>> On Monday, June 1, 2020, Bruce Kellett <[email protected]> wrote: >>> >>>> On Tue, Jun 2, 2020 at 5:39 AM Jason Resch <[email protected]> >>>> wrote: >>>> >>>>> On Mon, Jun 1, 2020 at 6:26 AM Alan Grayson <[email protected]> >>>>> wrote: >>>>> >>>>>> On Monday, May 18, 2020 at 9:20:36 PM UTC-6, Jason wrote: >>>>>>> >>>>>>> I recently wrote an article on the size of the universe and the >>>>>>> scope of reality: >>>>>>> https://alwaysasking.com/how-big-is-the-universe/ >>>>>>> >>>>>>> It's first of what I hope will be a series of articles which are >>>>>>> largely inspired by some of the conversations I've enjoyed here. It >>>>>>> covers >>>>>>> many topics including the historic discoveries, the big bang, inflation, >>>>>>> string theory, and mathematical realism. >>>>>>> >>>>>>> Jason >>>>>>> >>>>>> >>>>>> I see you agree with the MUH that there are infinite, identical >>>>>> repeats of any universe. >>>>>> >>>>> >>>>> To be clear, the MUH is separate theory from the idea of a spatially >>>>> infinite universe (which is just the standard cosmological model that >>>>> working cosmologists assume today, that the universe is infinite, >>>>> homogeneous, and seeded by random quantum fluctuations occurring at all >>>>> scales during the expansion of the universe). >>>>> >>>> >>>> >>>> Define what you mean by "quantum fluctuations". There are no such >>>> things in standard quantum mechanics. >>>> >>>> >>> Variations in the decay of the inflaton field that seeded the variations >>> in density that led to stars and galaxies, and confirmed by observations by >>> COBE and Planck. >>> >> >> >> That is not how inflation models work. >> > > Are you sure about that? If so could you explain the error in this or in > my understanding of it: > https://www.youtube.com/watch?v=chsLw2siRW0&t=6m43s > You video gives an oversimplified comic-book version of inflation. If you want to understand inflation, you have to go to a professional, expert review, such as Bassett, Tsujikawa, and Wands, Rev. Mod. Phys. 78:537-589 (2006). (Also in arXiv:0507632). You will see from this that density perturbations are just Guassian random fields, put in by hand, with parameters adjusted to fit the data. There are no intrinsic "quantum fluctuations". Bruce -- 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/CAFxXSLSsescvaBh2i-GdXOqkxApGE%2B7yGrEK8F983fkqz0_r6A%40mail.gmail.com.
