MIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with videocameras 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." Astonishing, data-rich research with deep implications for how we learn.

Deb Roy: The birth of a word

The birth of a word

Exploring language's birth through a child's eyes reveals a dance of complexity and simplicity, guiding their first words.

A home transformed into a lab uncovers the dynamic scaffolding of language, intertwining daily life with groundbreaking insights.

Exploring a child's language development, a home wired with cameras captures 'gaga' evolve into 'water' over millions of words.