I spent a semester in Oz in college. It forever changed the way I think about parallelism, to the point where it's not uncommon for me to implement a very rough

I spent a semester in Oz in college. It forever changed the way I think about parallelism, to the point where it's not uncommon for me to implement a very rough equivalent of dataflow variables in other languages. Some of its concepts do show up, though; Futures in Java, Qt, and I believe .NET are a very crude analog of dataflow variables (crude largely because they don't support Prolog-style unification like all Oz variables do).