On Thursday, July 17, 2025 at 12:13:48 AM UTC-6 Alan Grayson wrote:
On Wednesday, July 16, 2025 at 11:34:16 PM UTC-6 Brent Meeker wrote: On 7/16/2025 2:54 PM, Alan Grayson wrote: On Tuesday, July 15, 2025 at 1:37:35 PM UTC-6 Brent Meeker wrote: On 7/14/2025 11:13 PM, Alan Grayson wrote: On Monday, July 14, 2025 at 10:52:44 PM UTC-6 Brent Meeker wrote: Galaxies formed waaay after the Big Bang and we can't actually observe anything earlier than the recombination around 400,000yr after the BB. I am aware of that. Nevertheless, the red shift of distant galaxies indicates that they were receding at huge velocities, obviously after they were formed. They're receding at huge velocities from us...or are we receding at huge velocities from them. According to Inflation theory, there was a HUGE, HUGE expansion immediately after the BB, which lasted for a TINY, TINY fraction of the first second. This is generally accepted within the physics community since it answers some pressing issues such as the uniformity of the CMB. AG I don't know what JKC said about the speed of early expansion, but it seems to be increasing so it will be faster in the future than it was in the past. He claimed the early rate of expansion was exceedingly slow, and that the red shift we now observes indicates the current receding velocity. AG You do realize don't you that the uniform Hubble expansion means the further away you are from X, the faster you're "receding" from X. And since it's been a long time since galaxies formed they used to be closer together and hence were not "receding" from one another as fast, even if the expansion of the universe (the Hubble constant) was the same. Yes, I am aware of these facts. But my problem is that the light coming from those galaxies is interpreted to mean they are being observed as they existed billions of years ago, whereas the recessional velocity is occurring now and is essentially dependent on geometry; that is, if we imagine a spherically shaped universe and two separated galaxies on its expanding equator, the farther way these galaxies are separated, the faster they are receding from each other. And that's happening now. So how do you reconcile what's happening now, with what the red shift indicates occurred in the distant past? AG The red shift we observe now...due to our recession? Brent So what's the case? Is the red shift telling us those galaxies were receding rapidly in the past, or due to our recession in the present? AG And note that Clark says the red shift tells us how much the universe has expanded since those early galaxies were formed. Maybe this value is identical to the red shift caused by our recession from those early galaxies? AG -- 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 visit https://groups.google.com/d/msgid/everything-list/44ab5ef7-67cb-455d-bca2-e051a7382142n%40googlegroups.com.
