To construct a building, first you need a Coxeter Group......
Let Gravity equal to the square root of -1! Muahhahah!
he should design spaceships!
But then it wouldn't be easy anymore, it would be complex
First rule of Engineering - Make Reasonable Assumptions
Never! I want my spherical cow!
I think the mathematician would try to build it for all gravitational fields, or can we say without loss of generality g=0?