The Startup Zeitgeist http://macro.ycombinator.com/articles/2016/05/the-startup-zeitgeist/

Reading applications to Y Combinator is like having access to a crystal ball. Twice per year — once in the winter and once in the spring — thousands of men and women apply to Y Combinator. Each of these bright minds has his or her own vision of the future of technology. They pitch ideas related …
The Startup Zeitgeist · The Macro