and, to be clear: i'm not talking about co-ordinate systems. that's a relabelling process; it's a triviality.

what i'm talking about is:

1) the curvature of space. we should be able to do linear algebra in a curved vector space, but we have to make sure we're using the right rules, when we do.

2) the stability of space. this is more challenging, as it's going to require constant adjustments, not just lorentz-style multiplication factors. but, we know that space is not a static concept, and we know that these effects should be more powerful at the quantum level than at the relativistic scale.