Once more a lesson concerning 'histories', light-time 'histories', and ('c'), as I see it to be.

[Atlan0001]

Nothing travels faster than the constant of the speed of light (v +'c' (+300,000kps to every velocity without exception . . . including a man standing still by a railroad track)).

Nothing travels slower than the constant of the speed of light (v - 'c' (-300,000kps . . . including a man standing still by a railroad track)).

(+/-) 'c'. Identical twins, except.... (Identical twin horizons of the universe, except....)

There are two major horizons to the Multiverse-Universe, though a naked singularity of two: The Big Bang Beginning / Planck / Infinity (Collapsed) Horizon (eternally, always, non-local); and the collapsed Horizon (non-local) of the largest Black Hole of them all (of the universe) / the infinity of collapsed horizons of black holes (local) throughout space and time.

There are less than three dimensions, and more than four, to multi-dimensionality.

There is more than one vertical level to an infinitely flat horizontal Multiverse-Universe.

We travel futures (+) / histories (-) through a room and through the universe (through the infinities of rooms and universes), 0-point real space-time to 0-point real space-time. Light-time 'dark' futures (+) / light-time 'observable' histories (-), 0-point real space-time to 0-point real space-time.

0-point entangled/entangling space-time (0-point and 0-point and....)!