Discussion here seems to be about "invention" of mathematics. I am pretty sure math does not happen without human bodies in the physical world as it is. Eg. imagine a life happening on a small gravity object travelling through space at speed approaching speed of light: how does space exploration look like and with what math?
11 dimensional vector calculus is a pretty clear example of recogniting generality between 1, 2 and 3 dimensions we can experience, and extending it to an arbitrary number.
While humans, in their mind, do construct things they did not experience, we develop tools to do that based on what we do (even things like axiom of parallelism: we experience "intersections" or lack of them, so we can ask ourselves "what if two parallel lines do intersect?").
Mathematics has really become abstract in the last 2 centuries, and was pretty tied to physical reality up to that point.