Hacker News stories for 4 PM on Friday Aug 30, 2013

0.848 James Burke predicted the future in 1973. Now he does it again comments

0.806 Tomorrow’s Ember 1.0 Release: 5 Things Every Dev Needs to Know comments

0.765 Discover the Ladder Paradox, relativity’s greatest thought experiment comments

0.651 Inside Microsoft’s Stack Rank System comments

0.020 New Google Play policy requires opt-in dialog to show ads comments