Even in PHB land, it's possible to have the kind of living eenvironment that lisp gives you. If you need an example, look at Notch's making of Prelude of the C

Even in PHB land, it's possible to have the kind of living eenvironment that lisp gives you. If you need an example, look at Notch's making of Prelude of the Chambered (his Ludum Dare entry) where he has live code reloading in Java.