If humanity were capable of being satisfied, then they'll still be living in trees and eating bugs out of one another's fur. Anna had walked on a moon of Jupiter. She'd look up through a dome-covered sky at the great red spot, close enough to see the swirls and eddies of a storm larger than her home world. She'd tasted water thawed from ice as old as the solar system itself. And it was that human dissatisfaction, that human audacity that had put her there.