I know self driving cars can't reply just on GPS, David. That's why I said GPS is *part of* what is needed.

I don't deny either we have been successful sometimes on technical projects. But equally we have had a good number of write-offs. It is worth stressing HIGH TECH PROJECTS ARE HARD. Which is one of many reasons they are usually multinatiomal: sharing cost is part of it, but the skills needed are not always all available in any one country.