Stephen Colbert chats with David Levy, author of a new futurist-sexology-robotics book called Love and Sex with Robots, in this strange clip. The best part is Levy's laconic delivery, as he ponderously explains that people will have sex with robots "within five years" and fall in love with them "within the next 40 to 50 years." And Colbert actually raises an interesting ethical question: is it "forcing sex" if you program your loverbot to want to have sex with you whenever you want it?