Toward an evolutionary framework for language variation and change

Area of Science:

• Evolutionary Biology
• Historical Linguistics
• Theoretical Linguistics

Background:

• Languages change over time, similar to biological species.
• Current linguistic research applies biological techniques narrowly.
• A systematic evolutionary framework for language is lacking.

Purpose of the Study:

• To propose a general theory of evolution for investigating language change.
• To establish a unifying framework for language evolution.
• To integrate diverse linguistic inquiries under an evolutionary perspective.

Main Methods:

• Conceptual analysis of evolutionary theory principles (population, inheritance, mutation, selection, drift, migration).
• Application of these principles to language as an evolvable system.
• Development of a novel theoretical framework.

Main Results:

• Identified parallels and differences between language and life as evolvable systems.
• Proposed a systematic framework for applying evolutionary theory to language.
• Demonstrated how this framework can unify existing knowledge and research.

Conclusions:

• Viewing language as an evolvable system provides a novel, unifying perspective.
• This approach leverages evolutionary biology's rich theoretical framework.
• It initiates a new research program for understanding language change.