An endless number of green buildings doesn't make a sustainable city.
Cultures and climates differ all over the world, but people are the same. They’ll gather in public if you give them a good place to do it.
First life, then spaces, then buildings - the other way around never works.
Make it nice where you are, and put the density on top.
Something happens because something happens because something happens
A good city is like a good party - people stay longer than really necessary, because they are enjoying themselves.