A few months ago, I read Mark Seidenberg’s “Language at the Speed of Sight.” Seidenberg is a psychologist who studies reading, and his book is remarkably intelligent, frank, and witty. I think there is an occasional mistake or ambiguity here and there, but overall I was mesmerized.                   Typically, I don’t do reviews here and don’t intend to today. Instead, I have pulled several incisive quotes from the te...