I type a standard email (low error rate) at about 70 words per minute. I speak and read aloud at about 200 wpm. I read things that require only light processing at about 500 wpm; for heavier stuff like Vitanuova or Neal Stephenson being expository, that drops to around 200 wpm. (Textbook reading / comprehension speed varies too wildy to be really useful for this thought experiment.)
My question: which of these most closely approaches my (mode average) speed of thought?