The Sol Programming Language
 I developed the Sol programming language while working on my Master's degree at the MIT Media Lab. I was (and still am) fascinated by the way language structures thought, and was interested in creating a maximally elegant language to think about computation and graphical design in. The result is Sol, which has some interesting features but was implemented in a somewhat kludgy way. The core of Sol is R4R Scheme (R5R wasn't really done when I started), to which I added some ideas from set and category theory. Sol is scheme with sets; Sol uses sets for type expressions and concurancy, and the present implementation compiles to Java byte code. There are even Sol applets you can view if you don't mind waiting to download the entire language implementation along with each applet. I also created a very limited Sol-to-C++ compiler for the purpose of high-performance video processing; This allowed sol to be used for interactive genetic programming for evolving image filters. This implementation could run dozens of non-trivial image filters in real-time on a low-res video stream using an SGI Octane; I expect I could do much better on modern PC hardware. (You can see some of the results of this system on the ProceduralImageFiltering page.) In retrospect I wish I had done more to make Sol an independent project, but the complexities of dealing with advisors and MIT open-source licensing at the time thwarted my dreams of a true open-source implementation. I don't think anyone but me cares about this projct now, but if you are interested in breathing some life into Sol let me know.
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