Attempting to refute an article about a scientific study by linking to a collection of quotes from Felicia Day and Franz Kafka doesn't seem like a very solid methodology...

Excellent collection of quotes. Thanks for the link!

It is possible to find solitude in a city, though. One has to make a point of it, but it can be done.

Also, don't overlook the #2 habit, per this same essay: participation. The mind does need raw material to chew on, and there's plenty of that in the city.