Speed of speech is actually slower than the speed of thoughts. I read in speed read guide somewhere that one should reading out words in your head as it actually impede the speed at which the words are processed.

Have you ever had a time when a name or word is that the tip of your mouth but you can't get it out? That's the link between thought and speech malfunctioning! With the right set up, a machine can theoretically know what you mean better than yourself!