Exactly the same question ocurred to me as I was reading. In a lisp the is certainly possible, the environment exists as a giant sexp (possibly with some small

Exactly the same question ocurred to me as I was reading. In a lisp the is certainly possible, the environment exists as a giant sexp (possibly with some small compiled components). No idea how smalltalk works though. I've tried something like this with ipython, since you can save the session's input as a .py file. As long as you don't depend on the outside world you can recreate your image by using the bare repl as your "base image" and just load the (gittable) previous sessions input (which itself possibly loads older and older sessions).