I have a little bit more to say on yesterday's gloomy robotics post. The point I wanted to add is that this will inevitably become a huge political issue. At the moment, the consensus that innovation is always good is not seriously questioned on either side of the political spectrum, except by a relatively small fringe (though Kevin Drum - definitely not a fringe character - did link to yesterday's post in broad agreement). But as the processes of automation and technological unemployment continue, this will inevitably change. Obviously, we will not create 100% unemployment amongst humans without provoking a massive political backlash along the way.
The nature of the kinds of exponentials involved is such that it will appear as though change is relatively slow until suddenly robots are popping up everywhere and job loss is threatening people who matter (or at least their kids). So at some point - perhaps in the 2020s or 2030s - this will become a red hot political issue that everyone is talking about. Then it will be possible to campaign for reform (reform being the preferable alternative to revolution - but one that doesn't get much traction until there is a credible fear of revolution).
So the task now is mainly one of thinking - of figuring out when the moment comes, what should we be trying to do? What kinds of cultural changes will be needed, and what kinds of changes to legal institutions can produce a reasonably enduring human society in which people aren't like something out of WALL-E? Clearly the main changes will have to come in the way we think about and regulate the innovation process.