Hacker News on 3 April 2011

• Ask HN: How to stave off decline of HN?
• Predator Object Tracking Algorithm
• Zed's new project: Vulnerability Arbitration
• Formatting your web content to be a pleasure to read
• Nuclear Power is Safest Way to Make Electricity
• Clever algorithms in Ruby
• On Bushido, launch apps from github repos
• Alan Turing Documentary
• Withdrawing from Hacker News
• More screen is better for productivity, studies show