Moral anti-realism is the philosophical view that there are no objective moral facts or truths. According to this perspective, moral statements do not describe features of the world but instead reflect personal attitudes, cultural norms, or emotional responses. This means that what is considered "right" or "wrong" can vary between individuals and societies. Proponents of moral anti-realism argue that since moral beliefs are influenced by subjective experiences, there is no universal moral standard that applies to everyone. This contrasts with moral realism, which holds that moral facts exist independently of human opinions. Key figures in this debate include philosophers like David Hume and J.L. Mackie.