Cosmology 101
This Isaac Arthur video is titled "The Compendium of Doom, Part 1". It's really a basic intro to cosmology. The part 2 of the video is continued on a different YouTube channel as part of a collaboration. Part 2 covers the ways in which the Universe could end in the distant future.
Listening to the video made me realize just how little humanity really knew about the Universe before the 1800s. 100 years ago it still hadn't been established yet that other galaxies existed. I think it used to be referred to as the "island universe" hypothesis. I was thinking about how I could have proven Andromeda was a separate galaxy before Hubble's research but I don't think I could have.
Near the end of the video it was pointed out that the Cosmic Microwave Background radiation used to be infrared and will eventually in the far future be in the radio spectrum. That's really interesting to think about. Radio is as long of a wavelength as you can realistically get in the electromagnetic spectrum. The far future and presumably the majority of the Universe's entire lifetime will have RF as the cosmic background.
This report was published via Actifit app (Android | iOS). Check out the original version here on actifit.io
I don't know but it reminds me of something I saw in the @leomarkettalk post today.
Do you think the universe has a conscious? Apparently they are trying to prove it with math
https://www.space.com/is-the-universe-conscious
Without a clear understanding of what consciousness is I can't judge whether the idea of panpsychism is correct or not. I don't think though that extending the idea to believe that the Universe itself has an overall consciousness makes sense. As far as I know information can't travel faster than light and conscious thought seems to be slower than light. If consciousness is based on information than I can't understand how the Universe would have a conscious.
The Hubble constant means that there is a point in space that if you travel far enough away from the Earth and decide to turn around and return to Earth you couldn't. The Universe's expansion would cause Earth to recede away faster than light from your ship's perspective. Therefore, not all points in the Universe are causally linked. Some points would require faster than light signals to communicate back and forth with each other. Assuming consciousness is information restricted to relativistic speed how could the entire Universe have a single conscious? It seems to me the Universe has no single conscious or has the number of consciousnesses that reside in the Universe.
!BEER
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