Positivism holds that authoritative knowledge can only come from logical, mathematical, and empirical evidence from the senses. It rejects metaphysics and introspection. Positivism was developed by Auguste Comte in the 19th century and argues that society, like the physical world, operates according to observable laws. Post-positivism rejects the central tenets of positivism and believes that while reality exists independently, our observations are theory-laden and fallible, so objective knowledge requires triangulating across multiple perspectives.