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Do cosmologists know for sure that the Big Bang is propelling all matter away? (lemm.ee)

submitted 1 year ago* (last edited 1 year ago) by aCosmicWave@lemm.ee to c/asklemmy@lemmy.ml

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Is it at all possible that instead of being pushed away, we are instead getting pulled toward something huuuuuge via gravity? As if we are falling into something way greater than ourselves? I thought this was a wild idea but after I Googled it I found out that there is such a thing as a “Great Attractor”. Something 150 million light-years away is literally pulling all nearby galaxies towards it but no one knows exactly what it is.

So how do we know there aren’t any other Great Attractors, Greater Attractors, ad infinitum?

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[–] OceanSoap@lemmy.ml 1 points 1 year ago* (last edited 1 year ago)

I think this is hard to visualize with words like "out" being used, because then there must be an "in", and if you draw everything back "in" you get a Centerpoint, no matter what.

Same with the baloon, because when plated, its going in all directions except for "in", and in space, objects are zooming past each other, "in" and "out" yet still as expansion movement. (Right? I only kind of understand what you're explaining while guessing at why it's not 100% understandable for me.

In fact, anything that expands with a surface is going to be hard to visualize as how space moves because it all has a point it starts from.

Literally no idea if I'm making sense here.