Uploaded presentation slides

I uploaded slides for several of my recent talks. I'll try to upload the rest before the end of the year :-)

On Understanding Data Absraction, Revisited

I just got back from OOPSLA/Onward! where I presented an essay On Understanding Data Abstraction, Revisited. There is a discussion about it on Lambda the Ultimate. Here are the slides from the talk. The talk went pretty well. There was a nice discussion with the audience. Unfortunately the paper is pretty technical, so some people in the audience didn't get it. I suppose now I need to write the book...