Join Lily Cole, actress and founder of Impossible, and Chelsea Clinton, Vice Chair, Clinton Foundation, for a conversation about the social network that encourages a culture of giving and receiving.

• An Evening with Chelsea Clinton

Impossible—a social- sharing platform and app where people can post wishes or offers, as well as thank-you notes—debuted last year in the UK and just launched in the U.S. Lily will talk about the inspiration behind the project and take a few questions from the audience.