Seth Roberts writes to me

That’s a good way to put it: quality of walking opportunities.  Reduced or enhanced because I don’t read the language?  I’m not sure.

I say enhanced.  More generally, I see Paris and Buenos Aires as the two cities with the highest quality of walking opportunities.  Not many cities in Asia do well on this score, mostly because of congestion and pollution.  Los Angeles is an underrated walking city and Sao Paulo used to be; maybe it is too dangerous now.