acceleration? as in the literal speed at which we translate information through language?
The initial conditions are arbitrary, very indirect perception. How we ever assumed we were communicating is quite strange. Everything is primate, every word is first a negotiation for status. Then control. Perhaps manipulation. That words words refer directly to anything outside of a momentary context is impossible. Plus every word isn't simply arbitrary, it's metaphors, and they separate things by attributes that are based in folk science/psychology. We basically have to unlearn and replace words.