This week we're taking a tentative step into the humanities. We spoke with Jimena Canales, the Thomas M. Siebel Chair in the History of Science at the University of Illinois-UC, about her newest book "The Physicist and the Philosopher: Einstein, Bergson and the Debate That Changed Our Understanding of Time" to learn what happened when philosophy was pitted against physics in a historic intellectual battle. And we talked to Hannah McGregor and Marcelle Kosman, the scholarly hosts of the podcast "Witch, Please", about literary analysis and what critical thinking looks like in the world of literature.