Louis C.K. says people obsess over smartphones to distract from existential sadness.
Louis C.K. is so famous for being funny that he now has the confidence and clout to go on Conan and launch into a mostly un-funny observation that people turn to smartphones to distract themselves from the feeling that they're alone in the universe.
It's a very interesting commentary, and I totally agree with his thinking about parenting: "I'm not there to make them happy. I'm not raising the children — I'm raising the grownups they're going to be."