There’s a review of Eric Drexler’s new book over at The Space Review today.
I don’t agree with this (I assume that it’s his own opinion, not Eric’s):
APM will also make space colonization imperative, but for different reasons than for Eric Drexler’s original quest to find a solution to the impending global crisis posed by The Limits to Growth. What will the millions of people now involved in mining, manufacturing, distribution, retailing, transportation, and other services do if much less of these services will be required and most of them could be performed by robots? How will people earn a living if they can buy a desktop factory—something like a super 3D printer—and can produce most of what they need at home and no longer need to shop at Wal-Mart or Amazon? If people aren’t working and earning a good income they will no longer be able to buy stuff. Henry Ford recognized the problem and chose to pay his people well so that they could afford to buy his cars. By choosing to industrialize the Moon and colonize space, thousands and ultimately millions can be put to work earning a good income.
I think that this technology will enable space settlement, but I don’t see how in itself space settlement creates jobs, particularly for those who are becoming unemployable because they’re on the wrong side of the bell curve. That’s a big problem coming down the pike, and space isn’t a solution to it.