Cities Are Artificial And Only Exist At The Expense Of Resources From Elsewhere
Modern cities are not natural in that they are artificial unnatural centers of human existence.
Cities rely upon energy and resources from elsewhere to enable their existence and survival. These resources come from mostly invisible and intertwined complicated ‘just-in-time’ distribution networks and systems, and life in the city wouldn’t exist without them.
Systemic risk? Yes, I believe there is systemic risk there.