I don't have much to say about this paper. It's an interesting idea to have a programming environment where the object-oriented paradigm is more integrated in how programmers work. I'd like to see a system which really lets the programmer focus on concrete objects and move away from the abstract notion that currently is involved with programming.

I'd have to see such an environment in order to be convinced, but I really would like to see such an environment succeed in what this paper talks about.