Glasses were originally created to overcome physical obstacles, but design evangelist Debbie Millman shares how they turned into a fashion statement.

Small Thing Big Idea, a TED original series, celebrates the lasting genius of everyday objects so perfectly designed that they changed the world around them.

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Water is essential to life. Yet in the eyes of the law, it remains largely unprotected — leaving many communities without access to safe drinking water, says legal scholar Kelsey Leonard. In this powerful talk, she shows why granting lakes and rivers legal “personhood” — giving them the same legal rights as humans — is the first step to protecting our bodies of water and fundamentally transforming how we value this vital resource.

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