They trade a very narrow conception of power in the international system based on nuclear weapons for a much broader one based on economic integration and development that really brings them much more security in the long term.
He's as rigorous as any formal engineer in that he draws up designs for each work but, he said, the finished device can look very different to the initial conception.
He cautioned that industries faced with the potential disruptions of driverless technology should not move too quickly to a fixed conception, because the future is still very uncertain.