Hacker News on 30 March 2014

• Tesla and SpaceX: Elon Musk's industrial empire [video]
• Class Hierarchies? Don't Do That
• Abstract Ideas Don’t Deserve Patents
• Rendering Head in WebGL
• Wrong and Right Reasons To Be Upset About Oculus – with Carmack response
• Big data: are we making a big mistake?
• How Sleep Deprivation Drives The High Failure Rates of Tech Startups
• Good Samaritan Backfire
• Pass: The standard unix password manager
• How Turtl has no idea when you're sharing copyrighted stuff