I also agree with the rough time delineation. Starting with the dotcom bubble, the industry was flooded with people. So we should have seen amazing progress in every direction.

Most of those programmers were non-geeks interested in making an easy buck instead of geeks, into computers and happily shocked that we could make a living at it. And many of the desirable jobs turned out to be making people to click on things to drive revenue.

Who can blame any of those people? They were just chasing the incentives presented to them.