This document outlines 6 key characteristics of human language:
1. Productivity/creativity - Humans can talk about topics that are displaced in time or existence through language.
2. Cultural transmission - Language is culturally transmitted from one generation to the next, rather than through heredity.
3. Displacement - Human language can refer to past, future, intangible concepts through words.
4. Arbitrariness - There is no natural relationship between the form of a word and its meaning.
5. Duality - Language operates on a physical sound level and conceptual meaning level simultaneously.
6. Discreetness - Human sounds that make up words can be separated from one