We are now entering another revolution of free energy. Macintosh, as you know, uses less power than a few of those light bulbs and yet can save us a few hours a day or give us a whole new experience. It provides free intellectual energy that is becoming more refined year after year. My hope is that someday, when the next Aristotle is alive, we can capture their underlying world view in a computer. Imagine a student being able to not only read the words Aristotle wrote but also ask Aristotle a question and get an answer. That is what I hope we can achieve in the future.