Agree with most everything, your description resonates (also a since 1988 mathematica person). Theo Gray is who came up with the notebook, that iPython -> Jupy

Agree with most everything, your description resonates (also a since 1988 mathematica person). Theo Gray is who came up with the notebook, that iPython -> Jupyter were a multilanguage shout-out to, and they cite such. Other UIUC professors wrote significant parts of Mathematica originally, were paid for such. https://en.wikipedia.org/wiki/Theodore_Gray https://en.wikipedia.org/wiki/Theodore_Gray