I personally think, that General Relativity is in fact true, but GR with
complex numbers instead of tensors.
Such a GR describes a cosmological concept, where time behaves like a
real axis, which has a spacelike, imaginary inverse.
What we call 'space' or 'universe' is then the image, we receive from
the past along our own past light cone. This cone is defined by equality
of real and imaginary units, or as 45° from our own axis of time.
If now the axis of time curves, the universe also changes. The former
one shrinks and a new picture ('universe') pops out of nowhere - in a
'big bang'.
We could eventually count galaxies in it. But this is similar to
counting clouds and afterwards saying, this number is the number of
clouds forever.
So galaxies belong to the past and the further away the more remote in
the past. This past could stretch pretty far, if our telescopes get
better. And so we can count galaxies like clouds in the sky and come to
no end.
TH