Comment by mark_l_watson

While the article makes good points, I simply find it amazing that a programming user interface (with small changes) has been around for so long: I think kit was in 1983 that Xerox Special Information Systems provided me with a free 1 month Smalltalk license for my Xerox 1108 Lisp Machine. That Smalltalk interface is amazingly similar to Pharo Smalltalk which I still occasionally use.