>>12326588Not exactly, but this is a good question. Non-Euclidean geometry (and Euclidean geometry as well) are both equally true mathematically, since they are both consistent and they both have models (and actually there is a theorem of logic that says any consistent formal system is satisfiable by a model, so these observations are really equivalent). Non-Euclidean geometry was not actually intended to describe the physical universe, so it doesn't entirely make sense to ask if it works in practice. Mathematicians were just interested in exploring a mathematical curiosity (and the development of Non-Euclidean geometry largely emerged as a result of failed attempts to prove the parallel line postulate). All the physical applications came much later.
A better question to ask is whether is has any practical applications. I don't know to much about that, however. I do know that the surface of any sphere is actually a non-Euclidean plane.
