Dean, School of Arts & Sciences, University of Pennsylvania
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pennsasdean.bsky.social
Dean, School of Arts & Sciences, University of Pennsylvania
@pennsasdean.bsky.social
Official account of Dean Mark Trodden, Thomas S. Gates Jr. Professor at the University of Pennsylvania.

https://www.sas.upenn.edu/leadership
Wishing a Happy Thanksgiving to our students, staff, faculty, and all their families. 🍂
November 27, 2025 at 4:01 PM
In a new Ampersand podcast, Bhuvnesh Jain and I discuss how advances in data science and artificial intelligence are transforming cosmology, teaching, and interdisciplinary research at Penn. Listen to the full episode: buff.ly/NIrzCoR
@upenn.edu @sas.upenn.edu #cosmology #datascience
November 19, 2025 at 3:44 PM
What do street lights, tree cover, and public art have to do with criminology? In a new Ampersand Podcast, I talk with criminologist John MacDonald about crime prevention through design, big data and technology, and how Cambridge inspired a new program at Penn. https://bit.ly/42QX27m @sas.upenn.edu
October 21, 2025 at 7:12 PM
We all have theories about why we are the way we are. But for psychologists, this becomes a scientific exploration. In my third episode of the Ampersand Podcast, I discuss this connection between self and subject with Associate Professor of Psychology Rebecca Waller. buff.ly/CR4LFH7 @sas.upenn.edu
October 8, 2025 at 4:46 PM
What role does higher ed play in a democracy? In this Ampersand Podcast, historian Sophia Rosenfeld and I talk about the humanities, democracy, and how studying the history of choice can help students think critically about the hidden assumptions that shape their worlds. https://bit.ly/4mB5izg
September 25, 2025 at 12:23 AM
Dean Peter Struck and I discuss the Roman roots of the liberal arts tradition, how AI is changing the college experience, and charting curriculum for the 21st century in the new Ampersand podcast. Listen to full episode here: https://bit.ly/42prYev @upenn.edu @sas.upenn.edu
September 9, 2025 at 8:24 PM
As some people know, I love to write by fountain pen. I talk a bit about why I still prefer writing mathematical equations by hand and answer some other questions in the second installment of a two-part video series by Omnia. Watch the full video: buff.ly/TbTZuxh @sas.upenn.edu
August 19, 2025 at 5:22 PM
“How did it all begin?” This is one of the questions that, as a physicist, I’ve spent a lifetime trying to answer. In the first of a two-part video series, I answer that same question--but about my own career journey. Watch the full video in Omnia: buff.ly/0067NJQ @sas.upenn.edu
August 6, 2025 at 4:34 PM