Economic growth occurs whenever people take resources and rearrange them in ways that make them more valuable. . . . Every generation has perceived the limits to growth that finite resources and undesirable side effects would pose if no new . . . ideas were discovered. And every generation has underestimated the potential for finding new . . . ideas. We consistently fail to grasp how many ideas remain to be discovered. . . . Possibilities do not merely add up; they multiply.
