> I would suggest the relative viewpoint to geometry as one: is a beautiful concept and not too hard to understand at a rudimentary level. See for example http

> I would suggest the relative viewpoint to geometry as one: is a beautiful concept and not too hard to understand at a rudimentary level. See for example https://en.wikipedia.org/wiki/Grothendieck%27s_relative_point_of_view https://en.wikipedia.org/wiki/Grothendieck%27s_relative_poin...