All in all, because of light cones there can be no large-scale growth faster than x^3. And more like x^2 if you want to expand something more than just empty space.
All in all, because of light cones there can be no large-scale growth faster than x^3. And more like x^2 if you want to expand something more than just empty space.
Depends on what the curvature of the universe is. If it's negative then it supports exponential growth.