Optimality theory (frequently abbreviated OT) is a linguistic model proposing that the observed forms of language arise from the interaction between conflicting constraints. OT models grammars as systems that provide mappings from inputs to outputs; typically, the inputs are conceived of as underlying representations, and the outputs as their surface realizations.
Read more about Optimality Theory: Theory, Input and GEN: The Candidate Set, CON: The Constraint Set, EVAL: Definition of Optimality, Example, Criticism, Theories Within Optimality Theory, Use Outside of Phonology
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“If my theory of relativity is proven correct, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say that I am a German and Germany will declare that I am a Jew.”
—Albert Einstein (1879–1955)