[kabouseng]

The force of gravity is reduced by the inverse square of the distance (newton's law). Thus as space expands, and matter red shift away from us, the force of gravity reduce over time. The maximum force of gravity was just after the big bang.

[pdonis]

All of this is wrong. Newtonian gravity does not work for describing the universe as a whole. As I pointed out in response to the GP upthread, the "force of gravity" on us due to the overall matter distribution of the universe is zero.