Hacker News on 15 December 2015

• How Product Hunt really works
• Move Fast and Fix Things
• Angular 2 Beta released
• Flint, MI: So much lead in children’s blood, state of emergency declared
• Bash Academy
• Pebble Seizure Detect
• The Jacob’s Ladder of Coding
• How to Make Python Run as Fast as Julia
• Portable Offline Open Street Map
• Firefox 43 released with 64-bit version for Windows, better Private Browsing