there’s some things we just don’t know. Honestly I’m kinda glad that we can’t see a barrier of some kind cause wtf would be beyond it? That would freak me out. For a lot of things similar to space, everything we know insinuates that it is infinite. So until we find counter-evidence, the theory is that it IS infinite.
There are a lot of things that we consider to be fact that are just agreed hypotheses. They don’t contradict anything but we only know what we can prove or disprove. Since we can’t reach that boundary in space and have seen no proof of its existence, we have to assume it’s not there until we find evidence supporting it.
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