Indeed, but the way the math for expansion works is that there is something called a Hubble horizon and that makes it impossible to ever reach the edge, since it is moving away from us faster than light. (The limit doesn’t apply to the expansion of space-time).
Quite a nifty solution by the Supreme Programmer to avoid us hitting the limits of the simulation. I couldn’t have designed it better.
Well it was a more convincing solution than just having level crossing arms come down and an infinitely long train cross every time you get near the edge.
Imagine there being just no stars behind you. Just nothing. On one side you see the universe, like a wall of stars and lights, and next to that just pure nothingness. The void.
Not “the void,” no, but “a void,” yes. As the universe continues to expand faster than the speed of light, the stars outside of our galaxy will slowly disappear from view. There will come a time when the night sky is just the milky way and darkness elsewhere. I don’t know if anything will still be around to observe it, though.
Something tells me this isn’t a bad thing. If there is an edge of the universe, it’s probably going to be a very strange place.
Indeed, but the way the math for expansion works is that there is something called a Hubble horizon and that makes it impossible to ever reach the edge, since it is moving away from us faster than light. (The limit doesn’t apply to the expansion of space-time).
Quite a nifty solution by the Supreme Programmer to avoid us hitting the limits of the simulation. I couldn’t have designed it better.
Well it was a more convincing solution than just having level crossing arms come down and an infinitely long train cross every time you get near the edge.
“Space. It seems to go on and on forever… But then you get to the end and then a giant gorilla starts throwing barrels at you.”
–Fry, “Futurama”
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So… is Rick the top God or are there infinite simulations?
Just along the Central Finite Curve.
And Earth is already stranger than some would like.
And that is scary. If the is one takeaway from observing the universe it’s that there are always bigger and stranger things out there somewhere.
Good thing there isn’t one since we probably live in a donut.
I thought it was technically a three-dimensional donut shape progressing along a sort of 4D torus that we only exist on the “surface” of?
That’s a common misconception. We actually live on the surface of a 3D bear claw progressing along a 4D cruller.
It’s actually turtles all the way down.
Ah shit 🤯
Torus*
It does sort of feel like we’re in the butthole of universes, doesn’t it?
Imagine there being just no stars behind you. Just nothing. On one side you see the universe, like a wall of stars and lights, and next to that just pure nothingness. The void.
You could never get to the void because space-time has already accelerated the edge of all matter away from you faster than the speed of light.
Not “the void,” no, but “a void,” yes. As the universe continues to expand faster than the speed of light, the stars outside of our galaxy will slowly disappear from view. There will come a time when the night sky is just the milky way and darkness elsewhere. I don’t know if anything will still be around to observe it, though.
A bit off-topic but the voids in the universe (such as Bootes void) are scary af.
Or the quantum foam, or both, it’d be wild to be able to stare out into that sorta of black, in a metal way.
Hey I hear there’s a nice restaurant out there