Farrelly pooh-poohs livability indexes, saying that cities are about work, and "should never be measured principally in(...) pleasure."
"In a good city, you can feel the ideas in the air. Just walking the streets is exciting because the backstory, the front story and side stories tickle your brain cells. A city is an intellectual adventure in a way that the 'burbs can never be," she writes.
Density, says Farrelly, is key to creating places that is full of ideas and work.