There is an infinite number between 0.1 and 0.00000000000000000000000001
The only reason we can grable with these things in mathematics is because we are conscious minds who create symbolic meaning.
There aren't any numbers "out there".
"Out there" there are no perspectives only everything at once.
..edit.. I'm unable to reply again so I'll clarify what I mean here: for me physics is behavior, mathematics is existence
Only when you reduce reality (like humans do) and you start manipulating with symbols do you get mathematics.
This manipulation with symbols (and it's foundation of a quantifiable universe on top of a quantum universe) is the foundation of math, not the other way around.
Math is simply a way this underlying reality gets expressed, it is not what the reality is.