We are exploring moving beyond silicon-based chips to significantly boost the performance of PCs. Silicon chips will continue to improve, but we need to look ahead decades into the future.

It is still not as fast as today's silicon chips, but we can make it orders of magnitude better. We have a very clear picture of how to move on. Developing the first car is much harder than making a car that can go faster.

I like to use the example that building a car is hard, but building the first car is quite hard.