system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible for the matter in the universe to be infinite?

I'm not asking about the spacial dimensions of the universe. I'm wondering if there could actually be infinite matter. A while back, astronomers took a picture called the Hubble Deep Field, and saw that there were far more galaxies than they had thought. Then they took another picture even deeper into space called the ultra deep field. And again were surprised by the number of galaxies they saw. And finally, they took another picture even deeper into space called the extreme deep field, and again saw more galaxies further into space and farther back in time than they thought possible. So what happens next when they take another picture and call it the super-mega-awesome deep field, and potentially find still more galaxies? Is there any reason to think that it may never end? That there are an infinite number of galaxies?
gpt
In the visible universe, matter/energy is going to be finite because the size of it is finite. We can't continue finding new galaxies forever. In fact, we have a pretty good estimate on the density of matter/energy from the curvature of space time. 

If we include the parts we can't see? Well,if the universe is infinite in size, then it's not a big leap to suggest there's infinite matter/energy in it as well.