The Universe is not infinite because when observing the physical world we can find no proof (or strong evidence) that infinity exists. All our experience of infinity is based on theories and abstracts. A circle appears to have an infinite aspect. You can continue along the line of the circle for ever. However it is drawn in a physical world of 3 dimensional space, so it is not infinite. A circle is an abstract drawn where it presumes a 2 dimensional reality. If you make a circle into a sphere made of real matter you can see that it does not fill 3 dimensional space and so cannot be discribed as infinite. In particle physics we have discovered tiny particles, but so far we don't have proof, that these are infinitely divisible. Infact we are having huge trouble splitting them, if we can do it at all. Common sense tells us that it is possible to move infinitely fast, (we only need to add more energy to whatever propels us ) Yet, due to experiments with reality, we now have strong evidence, that you can only move through space so fast. There is a top speed. In distance, it seems common sense, whatever distance you move, you can always move half that distance. So then is space infinite? We have no proof that it is, other than our common sense and our abstract reasoning. Perhaps, like when we try to split particles and only get so far, perhaps space is made of "distance particles", which limit how little it is possible to move. We only find infinity in theories and abstracts, so the universe is very unlikely to be infinite, as it is physical and not an abstract created from our imaginations and abstracts .

**No one could ever say for sure, of course, but it's odd how we would even have such a concept as infinity, when nothing in our world would ever give that to us.** - Some thinkers, such as [Ludwig Wittgenstein](https://plato.stanford.edu/entries/wittgenstein/), believed that the notion of the infinite was a nonsensical extrapolation from distinctly finite and bounded particulars. - Others, such as [Georg Cantor](https://www.storyofmathematics.com/19th_cantor.html), believed that the fact that we had any such conception of something so distinctly abstracted from our physical world was good proof for the validity of the notion of the infinite. - Whether or not infinity is a purely theoretical abstract we create in our imaginations or a sort of [Platonic Ideal Form](https://www.mtnmath.com/whatth/node7.html) that exists both in relation to and beyond our ideas, I find it intriguing that we would even be able to conceive of and have a word for such a notion as "never-ending." - Quantum mechanics uses infinity (in the form of [infinite dimensional Hilbert space](https://quantum.phys.cmu.edu/QCQI/qitd114.pdf), the [uncountably infinite continuum of real numbers](https://mathworld.wolfram.com/UncountablyInfinite.html), and the [countably infinite set of integers](https://mathworld.wolfram.com/CountablyInfinite.html)) to return its results. Whether the concept of infinity has any independent existence beyond the mathematical formulism of quantum mechanics is likely a philosophical/metaphysical pondering, though many physicists do actually accept that infinities might be realized in nature. I, personally, am also somewhat swayed towards considering infinity to exist "beyond" in actuality, considering how the various forms of physical "is" are already being thrown for such a loop in the realm of quantum theory. (For instance, what something "is" is a non-causal, nonlinear process under the terms of quantum mechanics. Things literally "are" and "aren't" unless they "suddenly" at some point (both here and there!) "are"--which is a whole new type of logic, though one that is still self-contained in some way, increasing its validity beyond the purely theoretical. So, following some of that new logic opens our eyes a bit more to the possibilities when it comes to actualized infinity.) - I don't, however, think _our universe_ would necessarily be infinite in and of itself. But its relation to some conception of infinity could be complex and ever-changing. For instance, there is evidence (most famous and utilized among them Cantor's [set theory](http://matematicas.uis.edu.co/adrialba/sites/default/files/SetTheoryDover-%20Charles%20C%20Pinter.pdf)) that actual, mathematical infinity is not one concept, but instead an infinitely-splitting one with literally infinite sizes. Taking that into consideration, and coupled with the philosophy _of_ what such fields as quantum mechanics provide us with in terms of the _backgrounds_ from which our everyday world is derived and experienced relatively against...those very "backgrounds" may well be infinite _alongside_ their inner components. (In this case, "component" could refer to an observed, single moment of spacetime, for instance, as contrasted with a larger set of them.) In plainer language, it's not far from a possibility that some things within a finite universe are or are somehow coming from a process that is actually infinite. - A final note: If we actually take the implications of quantum mechanics seriously, the universe, especially _any single, given part of it_, is infinite _when and if we ask the question in the right way_. So possibly, but not often. And possibly, not often.

**We will never be able to discover what is beyond the universe, if there is anything at all.** - If the universe was to stop, what would be after it? Consider a pond. A pond stops at it edges, but then it goes to ground. It is the same with continents. When a continent stops, it changes to sea. SO, what would the universe go to if it was to stop? - The simplest and best way to answer this is to just say that it doesn’t stop. We have only explored [4%](https://www.worldwideboat.com/news/miscellaneous/ocean-vs-space) of the universe and it takes [46.5 billion years](https://en.wikipedia.org/wiki/Observable_universe) to reach the edge of our observable universe. We would never really be able to get to the edge of the universe, if it did indeed exist, as it is way past our observable universe limit. - So, yes the universe is infinite. There really cannot be anything beyond it. And if there is, I doubt we will ever discover it.

The Universe is eternal, as God is eternal, it came by him and thru him. He is in it, at all times here and there, with you and with me, unless you flee from him, he will flee from you. It was created for you and for him. In it life which he created, us in his image.

The universe is most likely not infinite, it is just too large for us to comprehend so it is easier for us to think of it as infinite

Nothing that has a beginning can be infinite. There is no bridge, no point where you can cross between finite and infinite. Since we know the universe has a beginning with a small and finite size (the Big Bang), we know it cannot be infinite. Because of the limits of the speed of light we cannot see the entirety of the universe at once, but that doesn't mean it is infinite, just larger than we can comprehend.