Scarcity has been a defining feature of human existence, driving economies by making goods in limited supply more expensive than those that are abundantly available. But scarcity has been built into our way of doing business because we view resources as entirely Earth-bound. That could soon change.
Today, a group of entrepreneurs are beginning to think that asteroid mining could help eliminate the scarcity of some resources and make some people insanely wealthy at the same time.

But is this just a pipe dream?