My guests in this episode are Ruth Rebecca Tietjen and Sanna Tirkkonen. Ruth is Assistant Professor of Philosophy at Tilburg University in the Netherlands. She specializes in social and political philosophy and is interested in topics such as fanaticism and radicalization and also existential phenomena such as melancholia and anxiety. Sanna is Academy Research Fellow at the University of Helsinki and Visiting Scholar at Heidelberg University Hospital. She works in practical philosophy but is also interested in phenomenology, the philosophy of the emotions and of psychiatry. Ruth's and Sanna's paper, "The Rage of Lonely Men: Loneliness and Misogyny in the Online Movement of "Involuntary Celibates" (Incels)" is recently published in the journal Topoi.