> I just want to tell everyone that Gilles Castel, the incredible person that popularized this form of math note taking, has passed away. It's awesome to see that people still use his blog and keep his legacy alive. We lost him at a very young age. Thank you for this video.

On why:

> depression got the better of him.

:(

1: https://www.youtube.com/watch?v=DOtM1mrWjUo&lc=UgyBCHtOu_8bl...