I clicked on this thinking it was genuine satire about his ego, actually.

I figured this was some waggish editorializing on the part of the submitter. Regarding the content, the propagation of uncertainties is pretty sweet, I'd like to see that everywhere. So many questions though, like how it interacts with piecewise models, or functions that map from a continuous to a categorical space. Presumably they have a clever answer. (Possibly I haven't read far enough.)

And let’s close that parentheses. It’s breaking my syntax highlighting

Perhaps he is! Just like in Seveneves.

I honestly thought he was announcing version 12 of his life management system.