> In other words, we can solve problems without any advanced math, or with no math at all, as evidenced by the fact that the agyptians were able to build the pyramids without even knowing Euclidian geometry.

Egyptians. Capital E regardless too.

Also, the Egyptians knew a fair amount of geometry:

https://en.wikipedia.org/wiki/Egyptian_geometry

https://en.wikipedia.org/wiki/History_of_geometry

https://www.britannica.com/science/mathematics/Mathematics-i...