The sensing selves of the biosphere were brought into being, and are maintained, by thermodynamic potential and the molecular informational complexity necessary to tap it....Organisms may be seen as connectable nodes that transform the environment as they mediate energetic flows....Quickly growing systems -- ones that through evolution, technology, or both. tap into previously unrecognized or untapped gradients -- may spread like wildfire. But like raging flames, they rob themselves of their own resources.

Eric D. Schneider & Dorion Sagan, Into the Cool: Energy Flow Thermodynamics and Life (pg. 158-59)