I got the point of the cartoon and I never argued that Randalls figures were wrong. I just think it's bad advice to give none technical people to say common words are secure because there's a risk that they won't use a sufficiently long (read: number of words) password.
At the end of the day, the whole password model is broken, and Randall summed that part up succinctly.
At the end of the day, the whole password model is broken, and Randall summed that part up succinctly.