We cannot count the number of galaxies in the probable infinite breadth of space since we cannot possibly observe that unobservability. Then there is the other, the perpendicular -- to breadth -- depths of the countless planes of space. How many galaxies are there in the unobservable 'folds' (the in-folding(s)) of space? A traveler who may have traveled outside relativity to the Earth and the Earth observer (who realizes he may have a 'c' of his own relative to his locality and not the Earth (open systemically constant to all positions and velocities no matter the relativity)) may discover there is much more to the Multiverse Universe than the observer on Earth can ever possibly observe (if all observers and travelers would observe it, it would total up, close up, to an infinitely dense mass; the Big Crunch || at once the energy of the [Base Planck / Big Bang] Horizon).
Among other things, such as 'local' and 'non-local', 'time' (singular) and 'times' (plural), etc., there is the existence of 'linear' (as in linear universe).... and then there is also the existence of the 'non-linear' (as in paralleling -- non-linear -- universes). A concurrent, or parallel, existence of 'non-linearity'. I've repeatedly noticed that there are those who believe there is no such thing as non-linearity.