Stephen Hawking: Advances in AI may not be benign

Proceed with caution, says Stephen Hawking of advances in artificial intelligence, calling Ray Kurzweil's singularity theory "too simplistic" and warning that once machines can evolve themselves their goals might not be the same as ours. The famed scientist also says that while governments focus on developing AI weaponry, projects using the technology that would benefit humanity take a backseat.