2. “The first lunar dust collected by Neil Armstrong from the Apollo 11 mission in 1969 is headed to auction, with an estimated value of between US$800,000 and US$1.2 million.” Link here.
4. Ezra Klein and Larry Summers (NYT).
5. New and relatively rigorous study of social media and well-being. Small negative effects, highly dependent on age, somewhat dependent on gender. Evidence consistent with causality running in both directions. This is not a zero negative effect, stronger than usual for girls 12-14, and for men 26-29, but overall not consistent with the doomsaying accounts. Here is NYT coverage. Note this from the NYT: ““There’s been absolutely hundreds of these studies, almost all showing pretty small effects,” said Jeff Hancock, a behavioral psychologist at Stanford University who has conducted a meta-analysis of 226 such studies.”