The biconditional is a pretty strong claim here (especially considering that you yourself have written well-regarded introductions to this topic).

It's spoken tongue-in-cheek, but in fact I don't know of any other intros including all of my own other efforts that I would make that claim about. Writing Bayes intros that actually work and introduce the most critical concepts is hard. Read the Arbital intro and compare others before you assume I'm joking or that the joke is false.

> iff

You're certain there is absolutely no other way? ;)

I know Bayes' rule, so I must have read this article.

No, he just said iff you learned it in an hour then you must have read that article. If it took you longer then you didn't necessarily read it.