Social contract theory is a philosophical concept that explores the origin of society and the legitimacy of governmental authority. It suggests that individuals consent, either explicitly or implicitly, to form a society and accept certain rules and obligations in exchange for protection and social order. This idea is often associated with thinkers like Thomas Hobbes, John Locke, and Jean-Jacques Rousseau. According to social contract theory, the agreement among individuals creates a moral and political framework that justifies the authority of the state. If the government fails to protect the rights and welfare of its citizens, the social contract implies that people have the right to challenge or change their government.