What is more fundamental: geometry or physics? All classical physics before special relativity was based on the Euclidian geometry. In that sense one may conclude that geometry is more fundamental. However, great Riemann clearly understood that only our experience in physical world is the source of all our geometric constructions. Due to Einstein, the Maxwell electrodynamics lead to the pseudo-Euclidian geometry of the spacetime and the relativistic generalization of the Newton's law of gravity lead to pseudo-Riemannian spacetime structure. I will discuss here the following question: what is the fundamental geometry in quantum physics?
Peter Leifer