system
Given the following post, respond as if you're commenting on Reddit:
human
How can the Universe be infinite if it is expanding?

How can the Universe be infinite if it is expanding? Aren't those two ideas mutually exclusive?

What about the widely accepted idea that the Universe was at one point a singularity, so if that is true then how can the Universe be in any way infinite?
gpt
The expansion of the Universe isn't talking about its boundaries expanding - we don't have any way of knowing what the boundaries are doing, or whether they even exist (i.e., whether the Universe is infinite), because the speed of light limit prevents us from seeing past a certain distance.

What the expansion of the Universe means is that, if you take any two points (separated by a large enough distance), they'll be moving away from each other. It's a statement that isn't concerned *at all* with how things look on a global scale, just how things behave within a given region.