That's not where it's going to end up. The Web will be much more ubiquitous with the growth in portable devices and wireless connectivity. I don't mean to say that desktops are going to go away any more than dictation went away after the introduction of the phonograph. It's just that there are so many other devices that the Web will become part of too. But the temptation to have the Web connect to more and more things has a lot of risks in it that we're going to discover as we go along.
Security is one.
Think about a terrorist penetration into the road-controlling systems. What an amazing mess that could become. A few accidents here and there, and you can stop a whole city. By and large, we haven't been building systems with the sensitivity to the risks that are involved at that level. If we're going to build these kinds of automatic systems that affect us so much, they have to able to tolerate the kinds of influences that are likely to come to them.