She waved her arm grandly toward the transparent barrier, toward the desert beyond. “It goes on and on, doesn’t it? How big is it, Diana?” “What, the whole country? Earth?” “All of it. Is the earth all of it? Then the earth. How big is the earth?” Diana shrugged. “I don’t know. I’m not exactly honor roll. Astrid would know, down to the mile, I’m sure.” Gaia turned to her, eyes lit with excitement. “But it’s big. How many humans?” “Billions.” That seemed to take Gaia aback. Her mouth dropped open.
