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Originally Posted by dustin_archibald An observer wouldn't neccesarliy need light to observe. |
True. That's only for animals and humans (if you can differentiate between these...I can't..sometimes....lol).
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Originally Posted by dustin_archibald What do you mean when you refer to "space"? |
I should right distance. And I get this from v=s/t which confuses, because has an S instead of d for distance.
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Originally Posted by dustin_archibald From an "inside" point of view of the universe are there places where matter doesn't exist, where there is essentially nothing? |
True vacuum doesn't exist, it's impossible (at least for me, and also others). But there are indeed places where there is no matter: I think. Although maybe very reduced and remote parts of the universe.