Diego E. Machuca is an Associate Researcher in Philosophy at CONICET (Argentina). His research is focused on skepticism, both ancient and contemporary. He is the author of Pyrrhonism Past and Present: Inquiry, Disagreement, Self-Knowledge, and Rationality (Springer, 2022). He is also the editor of New Essays on Ancient Pyrrhonism (Brill, 2011), Pyrrhonism in Ancient, Modern, and Contemporary Philosophy (Springer, 2011), Skepticism and Disagreement (Routledge, 2013), and Moral Skepticism: New Essays (Routledge, 2018), and the co-editor of Skepticism: From Antiquity to the Present (Bloomsbury Academic, 2018) and Les raisons du doute: études sur le scepticisme antique (Classiques Garnier, 2019).