Is software that replies to customers automatically the key to success in e-commerce? Ask the doctor.
If biologists can learn to use devices only a few billionths of a meter across, they could get a far better view of life's processes. They may even find ways to tinker with the machinery of life, death and disease. Welcome to the world of "nanomedicine."
Tired of your too, too solid flesh? Mild-mannered inventor Ray Kurzweil tells you how to scan your mind into a computer and live forever.