What is new under the silicon sun?

For a student of software design (like myself), a recent post by Peter Van Roy (perhaps this Peter Van Roy) at Lambda the Ultimate was quite interesting. He posited that there was a Golden Age of computer science from 1964 to 1974, gave a list of a 11 major developments from that era which seem to have set our direction and haven't been replaced by anything better, and then he asked what people thought. Although I waded in to question myself, what I think is much more interesting are things that everyone else suggested he missed. When I run out of meaningful things to say, probably fairly soon, this post will be quite helpful for my further studies.