Around the Blogs, Vol. 80

1. Weird views traced to the idea that an object's value is inherent in the object (Katja Grace) 


2. Towards a theory of external validity (Christian Jarrett/Gregory Mitchell) 


3. Economics in ten sentences (David Henderson) 


4. The hypothesis that sonograms may cause autism: one, two (Seth Roberts) 


5. Netflix never implemented the algorithm that won the Netflix challenge (Mike Masnick) 


6. "It is just a handy cheat sheet to use when a certain (blessedly rare) kind of pompous, overbearing German launches into an anti-American tirade." (Andrew Hammel)