The document discusses several key concepts: - Postmodernism first emerged in 1979 with Jean-François Lyotard's work, questioning rationalist European philosophy and the Enlightenment assumptions of objective truth and the ability of reason to improve society. - It rejects ideas like the existence of objective reality, universal human nature, language representing external reality, and the ability to construct general explanatory theories of the natural world. - Consumer capitalism refers to consumption driving the capitalist economy through corporate manipulation of consumers to continually purchase goods.