Using an innovative theoretical framework, Dr. Ritt describes the phenomenon of the change in vowel length in early Middle English, and sets out to account for its occurrence. He shows that the changes stem from universal principles that govern the way in which humans use speech sounds to communicate. He examines why these principles only sometimes lead to widespread changes, as in Middle English, and goes on to suggest that language is a complex system in which conflicting tendencies are constantly renegotiating their spheres of influence.

This new perspective on language change looks at a number of developments in the history of sounds and words and explains them in terms of Darwin's evolutionary theory. Nikolaus Ritt demonstrates how the constituents of language can be regarded as mental patterns, or "memes," which copy themselves from one brain to another when communication and language acquisition occur. Challenging established models of linguistic competence, Ritt's controversial approach will stimulate debate among evolutionary biologists, cognitive scientists and linguists.