Technology is changing who and how we trust. While our faith in institutions such as governments, media, and charities has hit an all-time low, many of us will rent a complete stranger’s home, exchange digital currencies, and trust bots. When we trust Airbnb more than our elected leaders, what does that mean for society? Rachel Botsman, expert in technology and trust, says this fundamental shift in trust has far-reaching consequences. She wrote the book "Who Can You Trust?," and lectures at Oxford University.