The biggest problem humanity faces is that we're running out of people.Sounds insane, I know. Fewer people means fewer mouths to feed, more resources to go around, and less pressure on the planet. All true, until you follow it through.GDP is driven by demographics. A smaller workforce means a lower ceiling on output, and we're already carrying more debt than we can service.So governments are left with one question. How do you grow when there's no one left to do the work? There's only one answer. Robots and ...