what is emergent property

[VanLilah]

An emergent property is a characteristic of a complex system that is not present in its individual parts but arises from the interactions between them. It is often described by the phrase "the whole is greater than the sum of its parts". Examples include the liquidity of water (which requires many water molecules interacting, unlike a single molecule) and human consciousness (which is a property of the brain's complexity, not of a single neuron).