[SS]: An interesting object oriented programming language, basic ideas comes from [SmallTalk] but SELF is more flexible and powerful, and probably even more ''pure''. SELF was used as bed-test for new ideas about compilation and virtual machines of very high level programming languages. More info at [http://research.sun.com/self/language.html]. It should be possible to build an object-system for TCL that uses ideas from SELF, maybe it was already implemented. Please if you know more, or have some code to show, write it here.