What is gravity

[kneetoe]

If acceleration can create a force like gravity, then all objects are accelerating? are they accelerating through one of those 11 dimensions?

 

[inha]

This makes no sense at all. Gravity causes bodies to accelerate, not the other way around. And besides there are 4 dimensions that we know of. Whatever string theorists are proposing for the dimensionality of the universe is just speculation until there is experimental verification to it.