Siniša Malešević elaborates on Mann's argument: "Mann's point needs extending to cover all social organizations, not just the state. The early chiefdoms were not states, obviously; still, they were established on a similar basis—an inversely proportional relationship between security and resources, on the one hand, and liberty, on the other." This means that, although those who live in organized, centralized social systems are not likely subject to hunger or to die in an animal attack, they are likely to engage in organized violence, which could include war. These structures make for opportunities and advances that humans could not create for themselves, including the development of agriculture, technology, philosophy, science, and art; however, these structures take tolls elsewhere, making them both productive and detrimental. In early human history, hunter-gatherer groups used organizational power to acquire more resources and produce more food; yet, at the same time, this power was also used to dominate, kill, and enslave other groups in order to expand territory and supplies.