Manhattan has no choice but the skyward extrusion of the Grid itself; only the Skyscraper offers business the wide-open spaces of a man-made Wild West, a frontier in the sky.
The Metropolis strives to reach a mythical point where the world is completely fabricated by man, so that it absolutely coincides with his desires.
Sustainability has become an ornament.
Most old cities are now sclerotic machines that dispense known qualities in ever-greater quantities, instead of laboratories of the uncertain. Only the skyscraper offers business the wide-open spaces of a man-made Wild West, a frontier in the sky.