Dr. Geoffrey West, President and Distinguished Professor of the Santa Fe Institute, recently led a team of scientists that has found that city growth driven by wealth creation increases at a rate that is faster than exponential. The only way to avoid collapse as a population outstrips the finite resources available to it is through constant cycles of innovation, which re-engineer the initial conditions of growth. But the greater the absolute population, the smaller the relative return on each such investment, so innovation must come ever faster.
Thus, the bigger the city, the faster life is; but the rate at which life gets faster must itself accelerate to maintain the city as a growing concern so much so that to maintain growth, major innovations must now occur on time-scales that are significantly shorter than a human lifespan.
"In this crucial sense cities are completely different from biological organisms, which slow down with size; their relative metabolism, growth rates, heart rates, and even rates of innovation - their evolutionary rates - systematically - and predictably - decrease with organismal size," West said. "Several thousand years ago the evolution of social organizations in the form of cities brought a new dynamic to the planet that seems to be uniquely human: People actually do walk on average faster in larger cities whereas heart rates decrease as animal size increases."
With the city mankind has created an "organism" operating beyond the bounds of biology. Posted by Casey Kazan.