Artificiality often carries the implication of being false, counterfeit, or deceptive. The philosopher
Aristotle wrote in his
Rhetoric: However, artificiality does not necessarily have a negative
connotation, as it may also reflect the ability of humans to replicate forms or functions arising in nature, as with an
artificial heart or
artificial intelligence. Political scientist and artificial intelligence expert
Herbert A. Simon observes that "some artificial things are imitations of things in nature, and the imitation may use either the same basic materials as those in the natural object or quite different materials. Simon distinguishes between the artificial and the synthetic, the former being an imitation of something found in nature (for example, an
artificial sweetener which generates
sweetness using a formula not found in nature), and the latter being a replication of something found in nature (for example, a
sugar created in a laboratory that is chemically indistinguishable from a naturally occurring sugar). ==Distinguishing natural objects from artificial objects==