Comment: The spectre of conscious robots taking over raises the question of what would motivate then to do so, or, for that matter, to motivate them to do anything that would not be programmed into them by us.  Organisms (i.e., gene carriers) are programmed too, not by any intelligence, but by carbon-based nucleic acid molecules (i.e., genes) that can mindlessly replicate and, through natural selection,  construct and programme their carriers to reproduce.  Unless humans program computers with a drive to self-perpetuate, there is no motivation for them to eliminate us.  I am much more worried about humans programming machines to harm and destroy other humans.