Hubert Lederer Dreyfus was an American philosopher and professor of philosophy at the University of California, Berkeley. His main interests included phenomenology, existentialism and the philosophy of both psychology and literature, as well as the philosophical implications of artificial intelligence. He was widely known for his exegesis of Martin Heidegger, which critics labeled "Dreydegger".

Martin Heidegger was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is often considered to be among the most important and influential philosophers of the 20th century.