Civilization rests upon the existence of language, says language creator David Peterson. In a talk that's equal parts passionate and hilarious, he shows how studying, preserving and inventing new languages helps us understand our collective humanity -- and gives a quick lesson on High Valyrian, one of two languages he created for "Game of Thrones" (along with Dothraki). "Language is not merely a tool," he says. "It is our legacy, it's our way of conveying what it means to be human."

David Peterson: Why language is humanity's greatest invention

Why language is humanity's greatest invention

Engaging with constructed languages like High Valyrian can foster linguistic tolerance and appreciation for Language itself.

Language shapes civilization; without it, inventions like smartphones and pianos wouldn't exist. Embrace our collective legacy.

Each lost language diminishes our collective human legacy; studying languages fosters respect and guards against cultural erosion.