If you took a planet and a handful of genes, you could pose some great questions about human nature and then run experiments to answer them. Instead of asking how much altruism, cooperation, creativity, or any other human trait is hard-wired, you could adjust the wiring yourself. First, you would work out how tightly behaviors and abilities could be programmed into the genome. Then you would create many societies with starkly different predispositions and compare their progress. In one country... Slate.