DFI hosts Sandra Matz to discuss the research that led towards her new book "Mindmasters" (A refreshingly relatable exploration of how algorithms penetrate the most intimate aspects of our psychology, and how we can regain mastery over our lives--from the pioneering expert of psychological targeting. There are more digital pieces of data than stars in the universe. This data helps us monitor our planet, decipher our genetic code, and take a deep dive into our psychology.)