I have seen references to gravity not being able to keep pace during the Inflationary epoch, as gravitational field is only able to propagate at the speed of light. This was an explanation for why the very early universe did not collapse into black hole, but I do not recall where I saw this.
I now question this response. If gravitational field had been established across the entirety of space-time, and then the space-time expanded, it seems to me that the gravitational field would remain intact across the entirety of space-time, although reduced in strength by increased distance, regardless of expansion rate. My reasoning is that all the forces exist every where / when in space-time regardless of expansion rate (i.e., there is no lag between superluminal expansion and arrival of force), or am I wrong about this?