Levinas, who was in the audience, had this to say about Davos in an interview with Francois Poire: “a young student could have had the impression that he was witness to the creation and the end of the world.” Later that evening Levinas and some of his friends restaged the debate for a sizable audience (if I’m not mistaken both Heidegger and Cassirer were in there). Levinas played Cassirer, but I can’t recall who played Heidegger. I think in that same interview with Poire Levinas confesses to feeling bad about mocking Cassirer’s rather lackluster performance and siding with Heidegger.