It's like the Internet. First, you need a massive government program to get the technology from the pie in the sky stage to something usable - a multi-decade,

It's like the Internet. First, you need a massive government program to get the technology from the pie in the sky stage to something usable - a multi-decade, arduous process that produces no short-term profits, if any. Once that's done, it's time for the private sector to step in.