Does Space Expand? What Do You Think?

[Trenton]

The idea of expanding space seems to me to be precicely as strange as in-falling space in the vacinity of black holes. One is simply the reverse of the other!

Since the big bang appears to be a singularity that for some reason became disrupted and exploded outwards, it would follow that space would expand in a collapsing or diminishing gravitational field. The further out the space is, the faster it expands - Just as with a black hole the further in the faster it shrinks.

This seems to me to be a better explanation than dark energy for the accelerating expansion - not least because we don't have to look for anything new!

And yes it can go faster than light because the speed of space itself is not limited in GR.

 

[Orion1]

Equation of State:
$$P(r) = -\rho(r) c^2$$

Inflationary metric:
$$ds^2 = - (1 - \Lambda r^2) c^2 dt^2 + \frac{1}{1 - \Lambda r^2} dr^2 + r^2 d\Omega^2$$

If space is still expanding, then would this metric also still be applicable in the Universe at present time?

Reference:
Cosmic inflation - space expands - Wikipedia