"This kind of activity itself seems like exploring, but in fact it's only survival," he says. Agricultural societies expand their farmland; hunting societies seek out hunting grounds. Exploration is a product of the need to survive.
「這樣的行動本身很像在探險，但其實只是求生存，」他笑道，農業社會開拓農地，游獵社會找尋獵場，探險是生存需求的產物。