I read the Epsom's Version PDF before the video was released, and the typesetting was absolutely terrible.
After the opening on how he's bothered by minor errors, I thought it had to be part of a joke, and it was a setup for a punchline to be revealed later in the paper. But eventually I realized, no, the PDF must not being displayed the way it was intended. I was reading it in Evince at first, but muPDF gave much better output.