Your children may prefer their company, you may "hire" robotic workers, they may do our dirty work, and one may care for you in your old age. The future for robots seems boundless. Is there a limit to the invasion? Rodney Brooks of Rethink Robotics, MIT's Andrew McAfee, and John Markoff of The New York Times take a closer look at the present and future of robotics at the Techonomy 2012 conference in Tucson, Ariz.