The video poison is spreading to software documentation too. I can't imagine a bigger waste of time than watching someone type code or work on a command line, y

The video poison is spreading to software documentation too. I can't imagine a bigger waste of time than watching someone type code or work on a command line, yet I've gotten the request many times. For GUIs I can somewhat sympathize, especially if the software changes the layout with every release (I'm looking at you, Blender), and it really does take 1000 words to describe where to click. But typed, word-oriented communication does not benefit from videos. And unless you're Vi Hart, teaching mathematics probably isn't going to benefit from an all-video presentation either. So, kudos to the author.