Final answer:
Mann claims that the Inca were trying to achieve economic isolation and self-sufficiency through their impressive infrastructure projects.
Step-by-step explanation:
Mann claims that the Inca were trying to achieve economic isolation and self-sufficiency.
One of the main ways they sought to achieve this was through their impressive infrastructure projects, such as building roads, dams, terraces, and irrigation canals. These projects allowed them to control and connect their vast empire, ensuring the smooth flow of goods and resources. By relying on their own resources and reducing their dependence on outside trade, the Inca aimed to achieve economic self-sufficiency and limit their interactions with neighboring societies.