Yelp CEO Jeremy Stoppelman talks with Kara Swisher about spending a decade at the helm of the local-recommendations site, and the new challenges posed by private companies that can out-raise the public Yelp. He also explains why he thinks quasi-competitor Google has ?lost its mind.? Later on: Kara Swisher and Lauren Goode don virtual reality headsets that are powered by smartphones and talk about the inevitable dystopian future.