But I think it is still worthwhile to suggest a discontinuity. Vinge was describing a discontinuity (of sorts) of comprehension, but people who know the term don't quite get that it's not an actual discontinuity, but a metaphorical one. So The Acceleration is too mild, indeed The Takeoff may be too mild. There will be upheaval, in fact The Upheave might be an interesting term if it didn't suggest vomiting. One nice attribute of that is that it is not a real word, so it would not conflict as much. Great coined terms are brand new but at the same time suggest what they mean.