Philosophical debates have arisen over the present and future use of technology in society, with disagreements over whether technology improves the human condition or worsens it. Neo-Luddism, anarcho-primitivism, and similar movements criticise the pervasiveness of technology in the modern world, claiming that it harms the environment and alienates people; proponents of ideologies such as transhumanism and techno-progressivism view continued technological progress as beneficial to society and the human condition. Indeed, until recently, it was believed that the development of technology was restricted only to human beings, but recent scientific studies indicate that other primates and certain dolphin communities have developed simple tools and learned to pass their knowledge to other generations.
Social stratification is the hierarchical arrangement of social classes, castes and strata within a society. While these hierarchies are not universal to all societies, they are the norm among state-level cultures (as distinguished from hunter-gatherers or other social arrangements). Also it refers to the hierarchical arrangement of people in a society. This chapter focuses on economic stratification, meaning how people are differentiated based upon their wealth (and/or