... Kevin Kelly thinks we should worry about the "underpopulation bomb" - the first time in human history to experience a diminishing number of young people combined with an increasing number of robots. ... Paul Saffo worries about a coming fight between two extreme classes he calls "engineers" and "druids", basically optimists and pessimists respectively who either want to use technology or ban technology. "Druids fear that robot cars are unsafe; Engineers wonder why humans are allowed to drive at all." Andy Clark says we don't need to worry about Super-AIs ruling the world, unless they get culture first. That's just a sampling of the many references to robots, robotics, and machine intelligence. As it has been in past years, the full set of responses is well worth a read for anyone with an interest in the future of the world.