Emergence refers to the phenomenon in which complex entities display characteristics that none of their individual components possess on their own, arising solely through interaction. This concept, central to philosophy, systems theory, and science, highlights how life arises from chemistry, consciousness from the brain, or societal structures from individual behaviors.
Thinkers such as Herbert Spencer identified emergence as a universal process of differentiation, noting its role in evolution from simpler to more complex forms. Ralph Vary Chamberlin associated it with the progressive development of science, while Joseph Le Conte stressed growth as an ongoing interaction between the old and the new. These viewpoints demonstrate emergence as both a natural and philosophical framework, connecting micro-level interactions with macro-level novelty.