[williamstein]

They do say what you quote with those words, but I think their intention is just trying to clarify the difference between Jupyter classic and JupyterLab. The Sage notebook predates the Jupyter project by at least five years, but was visually and functionally very similar.

[taeric]

To be fair, I'm not so worried on this. Even if Jupyter was what introduced some (many?) folks to notebooks, that is fine.

I was soured as early advocates were pitching it as way more impressive than it is. With some being proud of themselves for realizing you can put a "pip install" at the top of the notebook, thinking that somehow made it repeatable. I recall senior engineers wanting notebooks to have prod access so that you could deploy from a notebook. And thinking they were making a good practice statement. Ugh.