This symposium addresses the interactive gene-culture co-evolution of the human brain with tool use and technology - ranging from simple stone tools millions of years ago to computers today. Language co-evolved with the human brain throughout the evolution of Homo sapiens. Writing, on the other hand, is a relatively new technology that was invented by humans to translate spoken language into a visual form for transmitting verbal communication broadly to many people over large distances and time. As such, writing and reading can be considered the first 'social media' technology. Paula Tallal, Rutgers University. Recorded on 10/12/2018. (#34194)