Modernity and postmodernity are concepts debated by sociologists. Classical theorists like Marx, Durkheim, and Weber analyzed modernity. Durkheim saw modernity weakening morals through organic solidarity. Marx viewed modernity critically due to capitalism's exploitation. Weber noted modernity's "iron cage of rationality." Giddens defined late modernity through capitalism, industrialism, and surveillance. Postmodernists argue society has progressed beyond modernity. Baudrillard believed modernity "ruptured" with society now dominated by media and entertainment. Lyotard rejected metanarratives in favor of localized truths. However, postmodern ideas are criticized for being vague and offering no positive vision for society.