Hacker News on 23 July 2009

• My students forged the notes. I turned them into a lesson plan.
• Did you mean recursion?
• Joel Spolsky: The Day My Industry Died
• How A Pretty Face Can Push Visitors Away
• Why a woman's attractiveness acts as a repellent, explained using probability.
• On "magic", once again (from James Bennet, Django dev)
• Lisp outside the Box (O'Reilly book)
• Jeff Bezos apologizes for 1984-Kindle debacle
• Very Cool 3D Sketching Program
• Bill Gates: My 1979 Memories