This topic aims to present The effects of a theory on human lives depend on various factors such as its relevance, acceptance, and application. A theory can shape perspectives, influence decision-making, and guide actions. For example, the theory of evolution has profoundly impacted scientific understanding, social attitudes, and even religious beliefs. Similarly, economic theories inform policies that affect employment, wealth distribution, and market dynamics, thereby shaping societies. Ultimately, theories can provoke debate, inspire innovation, and drive progress, but their effects can vary widely depending on how they are interpreted and implemented in different contexts.