- Sep 16, 2022
Just reading then saw your sig .... love it
it wouldn't change anything about your perceived experience one bit even if it were true, so i'm not sure to what extent that thinking/explanation is "wishful".I do sort of get the vibe multiple universe theories are mostly wishful thinking
You should watch Sabine Hossenfelder's youtube channel (https://www.youtube.com/c/SabineHossenfelder). She's a physicist and explores a lot of these questions. Basically, there's a lot of things we just don't know. There are theories that suggest the Big Bang is essentially the result of a white hole. Some other videos (not sure if it's from her), discussed the possibility of some recursive black holes (e.g our universe being inside one already). Then there's also the famous holographic theory that suggests nothing is actually real.Seriously I have been thinking about this a lot for a long time. How many Universes are there?
Global warming is not the only temperature increase we need to worry about -- a new study suggests. Due to natural activity in the galaxy, it seems that the entire universe is getting hotter.
A recent paper found in the Astrophysical Journal describes the universe's thermal history over billions of years. The average gas temperature across the universe has increased over 10 times in the last 10 billion years, wrote the researchers. Currently, the temperature of gases closer to the Earth is approximately four million degrees Fahrenheit.
Yi-Kuan Chaing from Ohio State University shared that their work confirms Jim Peeble's research, who won the 2019 Nobel Laureate in Physics. Peeble's theoretical work and calculations were focused on factors of how the universe formed as well as new physical processes such as cosmic background radiation. His results showed that only 5% of the universe's contents are known to matter while the rest is unknown dark matter and dark energy.
The cosmic thermal history, quantified by the evolution of the mean thermal energy density in the universe, is driven by the growth of structures as baryons get shock heated in collapsing dark matter halos.
i will back this recommendation, while there are other science-related youtubers i watch imo her videos are the best i've seen so far. both for keeping the explanations reasonable for audience and also quite good for entertainment.You should watch Sabine Hossenfelder's youtube channel (https://www.youtube.com/c/SabineHossenfelder).
last i heard current models reject a "big rip", in the sense of expansion resulting in smaller and smaller things being torn apart or something. expansion doesn't seem to overcome gravity or the stronger forces at local levels. thus current theory is that universe simply keeps expanding, until eventually we don't see anything outside of local region that's gravitationally bound (assuming we still exist, the time scale for this happening is enormous, so we'd have to survive the sun going red giant).Isn't universe going towards a big rip because dark energy is making it expand quicker the bigger it becomes?
This reminds me of the "Vaccine RNA found in breast milk". Our ability to detect very small things is .... astounding.