Assorted links

1. Are fish smarter and more sentient than we think?

2. The rental housing shortage.

3. Reddit forum on what’s the most ****ed up thing you’ve ever done for money.

4. Mystery object (?) on Titan, Saturn’s moon.

5. Francisco Goldman is skeptical about Mexico’s reforms.  And the economics of the paywall at the FT.

6. Is Western civilization hardy or fragile?  And how often do men think about sex?

7. Conflicting data on the Chinese economy.