/sci/ - Science & Math

no one knows

Universe is constantly expanding. Due to the speed of light limitations observing the edge of the universe is impossible as far as current capabilities allow.
That's that.

>>15721641
There's no edge, there are just areas of space that you will never be able to travel to because they are moving away from you faster than the speed of light. So, to any amount of matter, the universe might as well be infinitely large. A proton, let's say, can keep travelling forever (does it decay?) and it will never reach an edge.

>>15721641
>no infinity can occur in nature
Proofs?

>>15721641
>infinite just means you dont know where the bound is
No, it doesn't. There are an infinite quantity of real numbers between the clear boundaries of 0 and 1.

>>15721641
>no infinity can occur in nature
Aren't black holes just that from a spacetime/3D perspective?

>>15721641
>no infinity can occur in nature
What do you call 10/3?

>>15721692
maths isnt reality bro its a language

>>15721710
see >>15721810

OP is failing to distinguish between the observable universe and the universe. For most purposes, the edge is located at the distance it took light to travel since the universe cooled off enough (presumably) after the big bang for baryons to form. Once baryons formed, photons could mostly move along straight lines, but they bounced around a lot before that because everything was a plasma. They call this time "baryogenesis." It's like when you're underwater in the ocean and everything is clear out to a blue horizon where you cannot see any further. In the ocean, that corresponds to the mean free path of photons due to little particles in the water, but the mean free path in the universe is due to the (presumed) epoch of plasma which was opaque to most frequencies of photons.

>>15721708
infinite density of a black hole is speculation based on einstein jewish mathematic mumbo jumbo. nobody seriously buys his theory in the modern day. Black holes are very dense but a finite density. If a black hole had an infinite density then it would also have an infinite mass and consume the unvierse.

>>15721822
ok so can you answer my question now?

>>15721827
Fart on my toof

>>15721641
>no infinity can occur in nature.
prove it

>>15721810
An argument without language is just a fist in your face.

>>15721868
ok?

>>15721641
open your mouth, i have a impossibly big turd coming

>>15721996
kys nigger

>>15721641
>the universe cant be infinite because infinite just means you dont know where the bound is
There's no boundary
>infinity can occur in nature
Proof?
>if the universe is not infinite then what does the edge look like?
There's no edge, it's a topologically open space

Erm... Guys. I Think He's Right Behind You. Derp! Derp! Derp! What The Flip! Derp! What the Derp is Going on. Im Derping so Hard Right now.
>>15721641
Derp!

>>15721641
There's no edge. The universe wraps around itself.

>>15721641
There are topologies without edges.

>>15721641
>if the universe is not infinite then what does the edge look like?
What does the edge of your vision look like? Maybe it's like that but on a cosmic level.

>>15721685
proof by example: all physical processes are finite

>>15721641
the edge looks like a mirror

>>15721641
"no infinity can occur in nature". Really you spastmong... at what number do you have to stop counting then because there is no larger one? Ninety-Nine?

>>15721641
Arguments for and against the existence of infinity:
https://reducing-suffering.org/believe-infinity/

>>15721827
The edge of the observable universe looks like the epoch of baryogenesis: about 300,000 years after the alleged big bang when things cooled off enough for atoms to form. This is also the source of the "cosmic microwave background," and the generally accepted answer to your question is that the edge looks like the CMB. The CMB is a diffuse background to everything because CMB photons were produced during a time before atoms formed, and the universe was not transparent to EM radiation (light and photons) at that time. It was an opaque space filled with plasma that eventually cooled off enough to form atoms, and then those atoms clumped into stars separated by large voids that don't scatter light like the plasma did. Now the universe is mostly clear, but it wasn't always. Since CMB photons were bouncing around in plasma so much in the very early universe (according to big bang cosmology), we can't say that they come from here or there like we can with starlight, or the light from galaxies, which mostly comes to us on a straight line. CMB photons are a diffuse background because they bounced around so much in the early universe (according to big bang cosmology), and the information about where they came from was lost in the pre-baryonic plasma.

So, the edge looks like the place where photons become too old for us to tell where they came from.

>the world can’t be infinite
>b_ b_ b_ because it just can’t be, okay?
You believe the world can’t be infinite because of of what is _obviously_ in front of you: seemingly finite things. But you have not considered that those seemingly finite things might just be an illusion. And the true nature of reality is actually infinite. Yes, you can’t have both. The question is, which is truly real?

>>15721646
fpbp

>>15721641
What would it mean for the totality of everything to have an edge? What would it mean for it to look like something? Nothingness is a logical impossibility. This, at least, we know for a fact. For the simple fact that there is something (us) and not nothing. Therefore, does not everythingness entail eternity, infinity?

>>15722505
math isnt nature any more than language is bro. why are mathcels like this?

>>15721641
Infinity is the one thing which is never found inside the universe, and yet it is the thing which makes all things within the universe possible.

'The stone which the builders rejected will I make my cornerstone.'

Where is the edge of infinity?
Beyond event horizon of black hole.
Before the big bang.
Beyond the horizon of your next thought.

Full explanation of infinity, and how the universe is a finite representation of the infinite:
https://youtu.be/xqY08gN_FCM?si=Vi5g7Ctz0YJmTmaf

>>15721641
/sci thinks the blatant big bang hallucination is fact. Even /x is better than that.

>>15721641
The assumption that infinities cannot occur in nature is falsified by both the infinitesimal and the fact that no boundary can truly exist since there's always behind it and that's always the universe.