I think that one of his assumptions is wrong: As far as I know, Comic Sans is actually easier to read than Arial, especially in children and dyslexic people, a

I think that one of his assumptions is wrong: As far as I know, Comic Sans is actually easier to read than Arial, especially in children and dyslexic people, and I'm not sure that a 60% grey is much harder to read than a 100% black. IIRC, dark greys are more readable than pure black (on screen at least). At last, once again IIRC, in the midrange, font size doesn't impacts readability at all. I don't have the time to look for citations right know, but I'm fairly sure I'm right. The author simply doesn't test whether that Comic Sans and Bodoni are less readable, and doesn't provide any citation backing his assertion. This is somewhat questionable, methodologically.