The impressive part is how Jobs would complain about something in the desktop with Ingalls just changing it on the spot with Smalltalk's rapid prototyping and live update abilities. Key example:
"One of Steve’s ways to feel in control was to object to things that were actually OK, and he did this a few times — but in each case Dan and Larry were able to make the changes to meet the objections on the fly because Smalltalk was not only the most advanced programming language of its time, it was also live at every level, and no change required more than 1/4 second to take effect."
https://www.quora.com/What-was-it-like-to-be-at-Xerox-PARC-w...
The impressive part is how Jobs would complain about something in the desktop with Ingalls just changing it on the spot with Smalltalk's rapid prototyping and live update abilities. Key example:
"One of Steve’s ways to feel in control was to object to things that were actually OK, and he did this a few times — but in each case Dan and Larry were able to make the changes to meet the objections on the fly because Smalltalk was not only the most advanced programming language of its time, it was also live at every level, and no change required more than 1/4 second to take effect."