The genesis of a word - Deb Roy - TED-Ed

What this episode covers

View full lesson: http://ed.ted.com/lessons/deb-roy-the-birth-of-a-wordMIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with video cameras to catch every moment (with exceptions) of his son's life, then parsed 90,000 hours of home video to watch "gaaaa" slowly turn into "water." This astonishing, data-rich research has deep implications for how we learn.Talk by Deb Roy. Learn more about your ad choices. Visit megaphone.fm/adchoices

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How long is this episode of TED-Ed?

This episode is 25 minutes long.

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This episode was published on May 24, 2026.

What is this episode about?

View full lesson: http://ed.ted.com/lessons/deb-roy-the-birth-of-a-wordMIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with video cameras to catch every moment (with exceptions) of his...

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