" The frontier works only through connection, fixing its failures by siphoning life from elsewhere. A frontier is a site where crises encourage new strategies for profit. Frontiers are frontiers because they are the encounter zones between capital and all kinds of nature - humans included. They are always then, about reducing the costs of doing business. Capitalism not only has frontiers; it exists only through frontiers, expanding from one place to the next, transforming socioecological relations, producing more and more kinds of goods and services that circulate through an expanding series of exchanges. But more important, frontiers are sites where power is exercised - and not just economic power. Through frontiers, states and empires use violence, culture, and knowledge to mobilize nature's low cost. It's this cheapening that makes possible capitalism's expansive markets. "

― Raj Patel , A History of the World in Seven Cheap Things: A Guide to Capitalism, Nature, and the Future of the Planet