Five Best Ideas of the Day April 13
1. Why do we need human pilots again?, By John Markoff in the New York Times, 2. We thought education would unlock the potential of Arab women. We were half right. By Maysa Jalbout at the Brookings Institution, 3. Peru found a 1,000 year-old solution to its water crisis. By Fred Pearce in New Scientist, 4. Why Saudi Arabia might need to break the country in two to "win" its war in Yemen. By Peter Salisbury in Vice, 5. Startup accelerators are greatwe think. By Randall Kempner and Peter Roberts in the Wall Street Journal