Sure, and if we're very lucky it'll eventually go quadratic as our species expands out into the universe in an ever-widening sphere. :-) Few things can grow exp

Sure, and if we're very lucky it'll eventually go quadratic as our species expands out into the universe in an ever-widening sphere. :-) Few things can grow exponentially forever, but a lot of things can grow exponentially for long enough to have huge consequences -- and that's usually what we care about.