Hacker News on 22 February 2009

• Building and Scaling a Startup on Rails: Things We Learned the Hard Way (by Posterous S08)
• The Eligible Bachelor Paradox
• Writing a Compiler for Python
• Reverse engineering Facebook photo links; circumvents privacy settings
• The evolutionary role of cooking
• PyML: machine learning in Python
• Marc Andreesen on Charlie Rose. Something for everyone here.
• Finding the lost city: Does the Amazon jungle conceal a vanished empire?
• Dropbox 100GB Plan
• Programmers and Sadomasochism