It's a new season of The Received Wisdom!! After their partial summer hiatus, Shobita and Jack discuss the fraud allegations that are rocking the foundations of what we know about Alzheimer's Disease, and the Biden Administration's directive to make freely available all publications based on federally funded research. And, they chat with Macarthur Fellow Mary Gray about the "ghost workers" behind digital technologies and supposedly artificial intelligence. Gray is Senior Principal Researcher at Microsoft Research, Faculty Associate at Harvard University’s Berkman Klein Center for Internet and Society, and faculty in the Luddy School of Informatics, Computing, and Engineering with affiliations in Anthropology and Gender Studies at Indiana University.