Pebbles, Vol. 40

1. Are Greenpeace et al. responsible for the death of eight million children? (Bjørn Lomborg)

2. The very low external validity of social science experiments (Jim Manzi)

3. An academic review of high-quality studies estimating the effect of police on crime (Jonathan Klick and Alexander Tabarrok)

4. Software programs for diagnosis (Katie Hafner)

5. Michael Chabon reads Finnegans Wake.

6. The rare xkcd foray into the humanities is a highlight. Bonus: The Aumann impossibility theorem.

7. Wives appear careful not to outearn their husbands (C.O./Marianne Bertrand, Emir Kamenica and Jessica Pan).

8. The famous "Broken Windows" article by George Kelling and James Wilson is back online.

9. An essay on memory by Oliver Sacks (via) (A good read, but contains nothing new if you have a fair grasp of the research literature)

10. Jonah Lehrer: Mistakes were made (by me).

11. "World's craziest freekick?" (video)

12. Earning money the hard way (video) (Cory Jones)

13. "13 Book Covers You Won't Believe Are Real" (Lauren Passell)