Such sad news! Condolences to his family, friends and thousands of admirers worldwide. One way to commemorate his life is to donate to the charityware cause he championed: https://www.iccf-holland.org
Nice. Coincidentally, I saw a talk about Jupyter @ FOSDEM earlier this year, this time with Perl 6 (https://www.youtube.com/watch?v=tSZV8IXIsM4). I had no knowledge of it prior to that point, and I really should come up with a good reason to use it.
Likewise, I had a brief conversation with the fascinating Dr Lewis Dartnell where we discussed the origin of barley farming. Did our ancestors grow it for food, and accidentally discover that you can also make beer with it, or did the beer come first and bread second? I had assumed the former, but now that I think about it...