[housecarpenter]

I agree that infinity doesn't exist in the universe, but this isn't a problem for mathematics. Mathematics isn't about what exists in the universe, it's about what exists in the realm of concepts. Some concepts are more interesting than others, sure. Cantor's work made it clear that infinite sets are pretty interesting.

[wizeman]

The Flying Spaghetti Monster is also an interesting concept.

It can even be useful as a concept, in certain discussions/contexts.

Should we take the Flying Spaghetti Monster as a core axiom of our theories of physics?

Wouldn't this lead to us logically concluding for example, that there has to exist something else beyond the universe that we know about, even if this is not really true?

I mean, I know that I'm exaggerating and that the analogy is not necessarily very good.

But I'm also not entirely sure how different is the Flying Spaghetti Monster from the infinite objects that mathematicians talk about and that lead us to logically arrive at certain conclusions (that I would argue might not really be true, in terms of things we can understand).

I'm not saying that I'm right and that most mathematicians are wrong, necessarily. Perhaps it's just a linguistic issue, I don't know.