Something that eluded and continues to elude my consciousness is the coordinate system(s) of space including time and curvature and does each have its X Y Z Z1 Z2 ? Can only seem to find justification for X Y and Z yet if straight lines in space are an illusion the coordinates quickly call for expansion ?
Another good point. It’s been a long day so far, but later tonight I’m going to reflect on your point about coordinates in curved space. It will probably be fruitless, but it’s a good and fun way to make the craziness of the day fade into the background.