OMNIA is less a single show than a feed for several podcast series produced by Penn Arts and Sciences at the University of Pennsylvania. Two of those series, Horizons and Ampersand, share a simple setup. Dean Mark Trodden talks with one faculty member, starting from the guest's research and moving out to what it means for students, policy and public life. Horizons is framed around the big issues shaping the world and higher education, while Ampersand describes itself as faculty from different disciplines taking up a topic they have in common. What a listener gets is range. In 'Climate Science in an Age of Uncertainty', Michael Mann, Presidential Distinguished Professor of Earth and Environmental Science, describes being drawn into the public sphere to defend climate science from attacks, a role he did not choose but came to embrace. That work grew into communicating the science to the public and to policymakers, and Trodden asks about the class Mann teaches on climate and environmental communication. In 'Today’s Defining Challenges are Global', Guy Grossman talks about the Penn Development Research Initiative, known as the PDRI Dev Lab, which he wants to work as a self-sustaining ecosystem rather than a series of one-off papers. Trodden, openly fascinated, presses him for projects that have had tangible policy impact. The Ampersand conversations range even further. With Bhuvnesh Jain, the talk turns to data science and AI, and the dean states an uncomfortable question plainly: what if a model puts a very tight set of error bars around an answer that is fundamentally wrong? Jain admits that this worries him more, because checking every step gets much harder when a neural net carries millions of free numbers. John McDonald, Professor of Criminology, weighs forecasting tools and automated report writing against the risk that people get profiled unjustly, while granting that the same tools, used well, can help. Rebecca Waller, Associate Professor of Psychology, explains why early childhood has to be studied through the relationship between parent and child, and points to good evidence that parenting interventions can have big effects. Sophia Rosenfeld, Walter H. Annenberg Professor of History, turns to the undergraduate curriculum itself. She praises the free range of American electives but asks what students and faculty ought to share in common. Her conversation also covers the role of higher education in strengthening democracy and the 250th anniversary of American independence. The dean's style as an interviewer is part of the appeal: he admits when he is getting into the weeds, and he stays with a thread when it interests him. With Waller, he notices that her account of child development depends on the parent-child relationship, and she thanks him for catching it. The tone is friendly rather than combative. For a first listen, 'From Dark Energy to Data Science' shows how far the questions can go into method, while 'Fighting Crime Through Design' shows how quickly research runs into public consequences.