I think maybe because with math we can insulate the problem from all the excess of variables that we find in the real word.

It is easier to reason. But has some crazy stuff too. Something I think has a strong relation philosophy, in a way that is beyond the scope of a comment, but just to note, is very interesting[1] :

1- https://en.wikipedia.org/wiki/0.999...

There is the proof , with the simplest math, I will not say x grade math because I don't like that habit; but simple.

The fact that _ 0.999... = 1 _ is maybe undervalued.

Infinity is paradoxal even on Math , thats was kind of supposed to be more exact.

So if it is misterious even for Math, imagine for the philosophy about the infinity of the universe. Just wished to note too:

When I say it is simple, only simple after someone told you how to do so.

To calculate the energy from the mass of an Atom is easy math, now that Einstein told you how to do so.

To calculate the diameter of earth, is "6th grade math" ( Eeeeek ! ) after Erastotenes told how to do it.