David Peterson: Why language is humanity's greatest invention

The video emphasizes the critical role of language in human civilization, highlighting its importance beyond being a mere tool. It addresses common misconceptions about language and linguistics, using examples like Neil deGrasse Tyson's comments on the film Arrival. The speaker argues that language is essential for expressing human thought and emotion, and losing any language diminishes our understanding of humanity. The video also discusses constructed languages, their artistic value, and the importance of linguistic diversity.

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