> Common Lisp borrowed parts of the smalltalk development strategy. You can start a process and gradually update it in very sophisticated ways as you live code

> Common Lisp borrowed parts of the smalltalk development strategy. You can start a process and gradually update it in very sophisticated ways as you live code against it. Lisp had interactive programming a decade before Smalltalk. The interactive PDP-1 Lisp is from 1963. BBN Lisp was based on it. Which then was taken over by Xerox PARC as Interlisp. BBN Lisp / Interlisp already had a very sophisticated programming environment in 1970, including a built-in structure editor for Lisp.