Chapter12 reponse

This chapter is talking about the evolution of cultures. In the beginning of this chapter, the writer stated the evolution method by a time machine journey through history. It is from five million years our ancestors lived in groups of a few dozen as hunters ago until now there are a large scale civilizations. 

Nowadays,Capitalism is the most popular in the word. It comes for our ancestor exchange of goods for one another as the main mechanism of trade becomes impractical in a large state. The use of seashells as currency probably predates city-state, and money was used in all of them. Money can travel easily and is not perishable. It provides a mechanism to assess the utility of very different foods and services. It is a large turning point in human culture and it develop different kind of cooperation in the society.