This week, taking a break from climate, we have a special guest on the show - Tim Hwang. Tim Hwang is a writer and researcher, and he's the author of Subprime Attention Crisis, a book about how online advertising may have become a bubble. He is currently a research fellow at the Center for Security and Emerging Technology (CSET) at Georgetown University. He is the former director of the Harvard-MIT Ethics and Governance of AI Initiative, $26M philanthropic fund and research effort working to advance the development of machine learning in the public interest. He previously served as the global public policy lead for artificial intelligence and machine learning at Google. We had a fascinating conversation that starts with a little word on deepfakes and misinformation, and then gets into the heart of the Subprime Attention Crisis thesis - is online advertising a bubble, and, if so, what does that mean for the internet that depends on it so much? I hope you enjoy.