I;'m the author. It's not hand waving, it's an attempt to write a simple, approachable article -- I'm not trying to be Knuth. If you want details, read the two

I;'m the author. It's not hand waving, it's an attempt to write a simple, approachable article -- I'm not trying to be Knuth. If you want details, read the two articles that are linked into the text -- in those I delve into plenty of details, and include real-world experiments.