Does Meaning Evolve?

A common method of making a theory more understandable is to compare it to another theory that has been better developed. Radical interpretation is a theory that attempts to explain how communication has meaning. Radical interpretation is treated as another time-dependent theory and compared to the time-dependent theory of biological evolution. The main reason for doing this is to find the nature of the time dependence; producing analogs between the two theories is a necessary prerequisite to this and brings up many problems. When the nature of the time dependence is better known it might allow the underlying mechanism to be uncovered. Several similarities and differences are uncovered, and there appear to be more differences than similarities.