This network [of satellites] was as important to the modern world as roads had been in ancient times, or rail lines during the industrial age. What would happen to humanity if these all-important links just started dropping out of the sky? (7.8.5)
Let's be clear here: we're part of the natural world, like it or not. Our tools help make this relationship a little bit more bearable for us. Roads in ancient times, railroads after that, and now, best of all, smartphones.