While I'm no way near mathematically capable (yet) of understanding the jargon the author uses later on in the post (e.g. "randomized singular value decomposition"), I'm glad he puts links to at least show he's not bluffing.
One quote that stood out to me was this one
> I appreciate that most of my writing is me, like an ant, simply following someone else’s trail.
I think you could apply that to most things in programming/computer science too