Inventor, author and futurist Ray Kurzweil has some controversial predictions about the future. Among them: by 2029, he says, computers will be so advanced that their thinking will be indistinguishable from that of humans. This moment, which Kurzweil calls "the Singularity", will change every aspect of our lives, and likely lead to humans and machines fusing together. Recently Kurzweil sat down with VOA to explain his ideas and what leads him to his predictions.