Sociologists often compare the differences between premodern and modern societies. The level of technology available and in use is the line of demarcation between these two societies. Premodern societies include hunting and gathering societies, horticultural or pastoral societies, and agricultural societies. Modern societies begin with the industrial revolution and the shift away from highly manual labor to advanced sources of energy and production of goods in factories with specialized tools. Modern society also includes the current postindustrial society which is focused on the production of information by using computer technology. The film The Return of Martin Guerre depicts an agricultural, premodern society, whereas I live in a postindustrial, modern society. In the film, statuses and roles are primarily ascribed rather than achieved. For example, Martin (or rather fake Martin) claims to deserve the profits earned from the land because the farmland belonged to his father, and therefore now by him. Modern society has a larger influence by achieved statuses. In my case, for example, I did not choose to work in the same type of career as my father, but chose to work in the field of electronics and earn a degree in electronic engineering. I am now back in school by my own choice as I work towards a business degree as well. The differences in group interaction between premodern and modern societies is seen by comparing the film with my life. In the film, the group interactions were mostly with the family, the primary group. They worked together on the farm during the day both in the fields and pressing grapes, and then ate and socialized together during the evening. In my case I spend much more waking time with my secondary groups at work and at school than I do with my family. It is actually a sad truth, I wish there was more time for family each day, rather than mostly on the weekends and vacations. Solidarity is certainly different between the society shown in the film and my life. In the film, the solidarity was mostly mechanical in nature. The society worked, ate, and lived together and were united in these nearly identical life experiences. In the modern society that I live in, solidarity is more often organic in nature. For example, I do not grow my own crops or livestock, so I rely on others to do grow the food, transport it to my city, and then sell it at a market. I am connected to the people that do these jobs because the lives of my family depend on them. The personalities of premodern and modern societies are very different as well. In the film we saw what Tonnies called Gemeinschaft—a human community. The family was valued over the individual. The family was shown entertaining themselves in the film singing and laughing together by candlelight after dinner. The family was also together as a unit at the first and appeal trials of Martin. In my life I see what Tonnies called Gesellschaft—society based more on self-interest. In most cases individuals will do what is best for themselves, not necessarily for the community..