Diego E. Machuca (PhD, UBA) is Assistant Researcher in Philosophy at the Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), and co-editor of the International Journal for the Study of Skepticism. He has published articles on ancient skepticism, ethical skepticism, and Descartes in Pacific Philosophy Quarterly, Ancient Philosophy, Archiv für Geschichte der Philosophie, Philosophy Compass, and elsewhere. He has also edited the volume, New Essays on Ancient Pyrrhonism (Brill, 2011).