Hacker News on 25 May 2008

• Harvard discovers much faster way to adjust your sleep cycle
• A Look Back at HelpSpot’s First 6 Months of Sales
• Telling our children the truth: response to Paul Graham
• YouTomb by MIT
• Tipjoy: Why Didn't it Take Off? Pathology of a Floundering Web 2.0 Startup
• The Homeless Billionaire
• Are Human Experts Less Prone to Catastrophic Errors than Machine-Learned Models?
• PR secrets? bullsh*t.
• What is a reflow?
• PR Secrets for Startups