Spatial Analogy

But Eodem modo Time is not like space
``Space is like time, but time is not like space'' JRL in A Treatise on Time and Space
Two arguments from Special Theory of Relativity

(i) Minkowski spacetime
(ii) Einstein's frame-dependence of the present
Minkowski spacetime is alleged to have abolished the difference between time and space. But although it integrates time with space, it retains a fundamental distinction between timelike and spacelike separations. The Lorentz signature is -+++, not ++++.
So far as electromagnetism is concerned there is no preferred frame of reference, and so no absolute, world-wide present. (Rather like there being no absolute rest in Newtonian mechanics.) But if we widen physics to include cosmology or quantum mechanics, there are preferred frames.