Not naturally.

right

So if it can naturally exist forever

isn't it plausible that it has always existed forever?

Lofi Hip-hop to study and beat minorities to

And I apologize that I'm not very well educated in this field

But I promise I'm arguing out of good faith here

Again infinity has largely been discredited as, for lack of a better word, paradoxical and illogical. Even physicists have deemed it so. Example being Georges Lemaitre, university of Louvain in Belgium.

No need to apologize.

I'm still learning about what Aristotle meant by the difference of potential and actual infinity.

Mathematic theory isn't my strong suit, but I love how he related the two, it shows his general brilliance if anything.

So is this infinity in concern to the passing of time or is it everything?

Infinity, being never ending, not expanding either. So this particular infinity deals with all of creation which is guided and defined by time.

No infinity has not at all been discredited by physicists

I never said all of them.

I simply gave examples where it has been.

Where?

George Lemaitre, one of the theorists behind the theory of the big bang, seen here.

You realize even the most basic calculus relies on infinities

Almost every branch of physics that we even study in undergrad has infinities within the theory

Infinity in theory or infinity in practice? That is, infinity for hypothesis, or infinity with regards to metaphysics?

That question doesn’t really make sense

And I'm not colluding the two, I'm simply saying is infinity being used for theoretical purposes or for actual explanations of the natural world?

Help me understand as you do.

Actual explanations

GR is the best example

It requires no discrete lengths in space or time basically so that you can for any given curvature in space create a locally “flat” thing called a spacetime metric

To do that the world has to be continuous in time and space, so infinitely divisible

It’s really analogous with epsilon delta I think it’s callled from calculus one. Which is why infinities are also required there

I understand the necessity of it, but I fail to see how this correlates with infinity with regards to creation? While I certainly hold no credentials, and that should be apparent, how does this figure into the Lemaitre-Tolman-Bondi model?

I mean how can accelerated expansion be believed in an infinite understanding?

Perhaps I'm misunderstanding the model.

Let me look that up tbh I haven’t heard of it. Are you saying howncould they theorize that the universe expansion is accelerating indefinitely?

The expansion of the universe, and the theory of it, seem to contradict the idea of an infinite universe. I mean, how could infinity expand infinitely? That makes no sense.

Oh the ltb metric is inhomogenous which our universe isn’t

Again that's why I brought up Lemaitre and Edwin Hubble, that was their bread and butter

Yeah they are describing an inhomogenous universe which ours isn’t. But as for how infinity can expland that depends on a few things. We can pm about it if you want because my background is actually in GR and I feel like people here won’t really care

So the idea is that the universe is expanding at an accelerated rate flies in the face of the theory that the big bang is just an infinitely recurring event in the history of the universe, right?

Yes it does

An infinite universe can expand though

So is in inhomogeneous and also not isotropic?