Hacker News on 20 September 2007

• CMU professor gives his last lesson on life
• Are you going to change the world? (Really?)
• Food Ideas for Startup Guys
• Is email the ultimate social environment?
• "Enterprise software" is a social, not technical, (problem) phenomenon
• How did you meet your YC app team?
• Major research breakthroughs in the last 10-15 years
• Google launches JavaScript API that allows you to write back
• I'm giving away free ad space for early startups
• I Want a New Platform