Yep, that’s the “Who is John Galt?” speech (spoiler: no one cares, fuck that faggot) from the Fountainhead. Right at the finish line she hits you with literally 90-ish pages of fart-huffing bullshit pontification that just meanders and tries way too hard to sound smart, but really doesn’t say anything that couldn’t be summed up in a few paragraphs… it’s just fucking awful.
The only way I’d believe that Donny actually finished that book is if he admitted that he based his tweets off of that speech: using way too many words to ramble in circles.