On Sat, Jun 6, 2020 at 2:08 AM Jason Resch <jasonre...@gmail.com> wrote:
> On Fri, Jun 5, 2020, 5:55 AM Bruce Kellett <bhkellet...@gmail.com> wrote: > >> >> 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". >> > > > According to the theory what is the source of this gaussian randomnesses? > What makes a field random if not quantum mechanics? > There is no theory behind this -- the gaussian "fluctuations" are just put in by hand. There is the unspoken implication that the origin of these fluctuations is quantum, but there is no theory for this, and, as has been pointed out, there are no such things as "quantum fluctuations" in this sense. Tim Maudlin has commented on this in Sabine Hossenfelder's blog: https://www.blogger.com/comment.g?blogID=22973357&postID=264282891971221826 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 everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAFxXSLQK32wMUUvWGkCVtuLXBy4%3D5Av5mNDyGCKHkT%2B95n1cbQ%40mail.gmail.com.
