Why is reflectivity considered to be a special property of human language?

Reflectivity is seen as a key property of human language because it allows speakers to communicate about language itself, enabling them to discuss Words, grammar, meanings, and language structure. This introspective ability to discuss and reflect on language is considered crucial in the study and evolution of languages. It sets human language apart from other forms of communication by allowing speakers to have self-awareness and control over their linguistic abilities.