Hacker News on 5 December 2013

• South Africa's Nelson Mandela dies
• Download a copy of your Gmail and Google Calendar data
• Multiprocess Firefox
• Why you should use OpenGL and not DirectX
• After 5 days, my OS doesn't crash when I press a key
• How can C Programs be so Reliable? (2008)
• Real Men Go to Sleep
• Functional programming books review
• As engineers, we must consider the ethical implications of our work
• Stop Saying Bitcoin Transactions Aren’t Reversible