I think most Lispers reckon REPL development the way it was described; analogous to editing code in a Smalltalk Browser and Doing/Inspecting it in a Smalltalk W

I think most Lispers reckon REPL development the way it was described; analogous to editing code in a Smalltalk Browser and Doing/Inspecting it in a Smalltalk Workspace. WRT Smalltalk, you can Do/Inspect code in a Workspace and then create a class and copy it over but this typically isn't done that much.