Hacker News on 18 September 2013

• Google announces Calico, a new company that will focus on health and well-being
• Children are suffering a severe deficit of play
• The Engineer Who converted 12,100 Cups Of Pudding to 1.25 Million Air Miles
• A Jewel at the Heart of Quantum Physics
• The Dribbblisation of Design
• The iPhone 5s Review
• The Architecture of Open Source Applications
• Simpson's Paradox
• Verizon, caught red-handed
• Cyanogen raises $7 million to build a better version of Android