"When you have robots tending the vertical farms of solar-powered skyscrapers, and self-driving drones and cars and automated hyperloops organizing transit and delivery, and shoreline breakers harnessing the power of the wind and waves to send electricity back to their coastal cities, and 3D printers creating clothing and food at near-zero cost—when you have all these things, we’ll be living in a state of abundance. Farmers will no longer be necessary. Oil companies and their laborers will be phased out. Construction workers will no longer be needed. When virtual reality allows us to visit museums and foreign lands, the travel industry could see a great decline as well; even those who do take to the road will find their service needs handled by the aforementioned automation—with no need for humans to get in the way."