Thought-speech runs 10 times faster than spoken-speech

I'd love to talk to you, but it is just way more efficient to sit here by myself and think. That is what I got our of reading this post by Ann Althouse.

If thought-speech really runs 10 times faster than spoken-speech, then 6 minutes of thinking on your own is like an hour of talking with someone else. Assuming the substance and quality of the word flow are exactly the same, it's just way more efficient to think.