translation.en: So before agriculture, before the agricultural revolution, it's important to understand that human beings lived in hunter-gatherer groups that are characterized wherever they're found in the world by what anthropologists called fierce egalitarianism.
translation.zh: 最多百分之五的时间， 在农业，以及农业革命之前， 很重要的一点是理解人类 是以狩猎采集群居的形式生活的 这种群居形式 无论存在于世界的哪个地方 都被人类学家称做激烈的 平均主义。