Five years ago, in 2007, everybody was thinking social and mobile, just like today. The author talks about how technology changes radically, but none of the bus

Five years ago, in 2007, everybody was thinking social and mobile, just like today. The author talks about how technology changes radically, but none of the businesses he cited (Digg, Twitter, Facebook) are enabled by new technology, or solving new problems. Everybody is just trying to milk the social cow over and over again, there's nothing new short-term. All the exciting ones are long-term (Self-driving cars? SpaceX? Graphene? Cheap genome research?).