We’ve spent a considerable amount of time on cosmology (over 66 pages). And like other topics in the past (geology, archaeology, etc), we could go forever, but I’m going to wrap up this topic. Going by the evidence that we’re near the center of the universe and without the need to introduce multiple ad hoc …
otseng wrote: ↑Tue Dec 06, 2022 8:12 am To recap the white hole model so far. We assume the entire universe started in a small volume. By definition, this would be a white/black hole. During the expansion of the universe, the event horizon would collapse as matter/energy moves apart. This would cause gravitational red-shifting. The …
DrNoGods wrote: ↑Mon Dec 05, 2022 2:43 pm But we don’t know if the universe is infinite in size any more than we know that it isn’t. So neither assumption is more valid than the other. It’s very reasonable to conclude the universe is finite in size since it is finite in age. How could …
otseng wrote: ↑Sun Nov 27, 2022 9:07 am There is another way that things can get affected that makes it appear to us that it is uniform, but without the need for instantaneous changes at all points in the universe. The changes could occur in an isotropic manner, but not a homogeneous manner. More about …
DrNoGods wrote: ↑Sun Nov 20, 2022 1:42 am If dark energy exists and is driving the expansion of spacetime, it may not require any kind of “information” to travel from one point to another to “tell it what to do” … its inherent properties enable it to act the same everywhere, like a negative gravity. …
DrNoGods wrote: ↑Fri Nov 18, 2022 2:24 pm If it were a gravity-like “thing” then it may act identically at all points in spacetime with a result of uniform expansion throughout. I’m not so sure even gravity can act instantaneously, but is also limited by the speed of light. The speed of gravitational waves in …
Miles wrote: ↑Wed Nov 16, 2022 3:54 pm Having stumbled across the following not too long ago, this may answer your question. Please note; this is a 2016 update. ……Is the Big Bang a black hole? The article states: The short answer is that the Big Bang gets away with it because it is expanding …
There is another way light can be redshifted besides the doppler effect – gravitational redshifting. In physics and general relativity, gravitational redshift (known as Einstein shift in older literature) is the phenomenon that electromagnetic waves or photons travelling out of a gravitational well (seem to) lose energy. This loss of energy corresponds to a decrease …
DrNoGods wrote: ↑Thu Nov 10, 2022 1:29 am There’s no need for any external signals to have these reactions take place … they will naturally occur due to the local behavior of the atoms and molecules involved according to the laws of chemistry. If the properties of dark energy (whatever that actually is if it …
7:26 I’m thinking more and more in the direction that time is fundamental is not emergent. Differentiated from space? Yes. ~ Lee Smolin (American theoretical physicist, a researcher at the Perimeter Institute for Theoretical Physics, and an adjunct professor of physics at the University of Waterloo) https://debatingchristianity.com/forum/viewtopic.php?p=1098866#p1098866