Lots of trends associated with the modern world seem to be increasing at an exponential rate. This includes things like energy use, CPU speed, and even scientific publications. But what if rather than being a exponential curve, all of these trends are really the bottoms of S-curves? Curves that start out looking like exponential curve, but which taper off at the top and plateau as constraints kick in. What would that mean for the ongoing progress people have come to count on, and what might be some potential examples of this?