I don’t know, but I found this: https://patents.google.com/patent/US8407580 https://patents.google.com/patent/US8407580 Also: https://www.theatlantic.com/scien

I don’t know, but I found this: https://patents.google.com/patent/US8407580 https://patents.google.com/patent/US8407580 Also: https://www.theatlantic.com/science/archive/2018/04/the-scientific-paper-is-obsolete/556676/ https://www.theatlantic.com/science/archive/2018/04/the-scie... “The notebook interface was the brainchild of Theodore Gray, who was inspired while working with an old Apple code editor. Where most programming environments either had you run code one line at a time, or all at once as a big blob, the Apple editor let you highlight any part of your code and run just that part. Gray brought the same basic concept to Mathematica, with help refining the design from none other than Steve Jobs.”