質問者: Do you feel that using a speech device to communicate has changed your personality in any way? As an introvert, has it made you more extroverted?
STEPHEN HAWKING: Well I am not sure I have ever been called an introvert before. (laughter) Just because I spend a lot of time thinking doesn’t mean I don’t like parties and getting into trouble. (laughter) I enjoy communicating and I enjoy giving popular lectures about science. My speech synthesizer has been very important for this, even though I ended up with an American accent. (laughter) Before I lost my voice, my speech was slurred, so only those close to me could understand, but with the computer voice I found I could talk to everyone without help. So it has allowed me to express my personality rather than changing it.