On Thursday, October 3, 2019 at 8:01:49 PM UTC-5, Lawrence Crowell wrote: > > On Thursday, October 3, 2019 at 6:59:35 PM UTC-5, Bruce wrote: >> >> On Fri, Oct 4, 2019 at 9:54 AM Alan Grayson <[email protected]> wrote: >> >>> >>> ISTM, that the argument the universe was NOT in thermo equilibrium just >>> before inflation is alleged to have begun, is extremely WEAK. Thus, it's >>> illogical to claim that inflation "smooths out" the alleged NON thermo >>> equiiibrium just before inflation begun. AG >>> >> >> That is essentially what I said. Lawrence is just replacing one set of >> unknown initial conditions with another, equally unjustified, set. >> >> Bruce >> > In below & means δ. I forgot to replace them.
LC > > The entropy is S = A/4ℓ_p^2 + quantum corrections, where these > corrections are ~ (&S/&h^a)k^a. Here h^a is tangent to the horizon and k^a > is normal. This condition coincident on a null surface can appear on a > quantum extremal surface with null tangent g^s so that (&S/&h^a)k^a ≥ > (&S/&g^a)k^a by subadditivity. However, this surface occurs inside the > cosmological horizon. This means there is no equilibriium. Equilibrium is > only approximated by stretching the horizon out to enormous distance after > the spatial surface has inflated. > > It is the case that inflation does not tell us the whole story prior to > inflation. So one can say there are equally unknown initial conditions. > However, the details of those are less important as the spatial manifold is > stretched out. That means inflation does provide at least a working system. > > LC > -- 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/75232332-e0e1-41f9-8f18-fbec29c01396%40googlegroups.com.
