Hacker News on 20 October 2013

• The genius and folly of MongoDB
• Have young people in Japan stopped having sex?
• What’s New In Python 3.4
• Google Checkout Closing Down on Nov. 20th
• Facebook CSRF leading to full account takeover (fixed)
• This is a valid ipv4 address
• I’m the Accidental Owner of a Banksy
• The Ocean is Broken
• Design tip: Never use black (2012)
• Review of the DSM-V as a piece of dystopian fiction