He self typed as LSI at first and later found himself to be quite intuitive and changed his mind to LII. But his thoughts are too scattered for that. Also, it's interesting that he says at 27~28 minutes "the type is nothing static, it changes with the course of life" which contradicts modern typology theories. Then after giving clues that he was introverted and thinker and intuitive, he goes and says "that gives you the necessary data for the diagnosis" almost as if he has a reluctance to give the answer straight up, which seems more Ni lead than Ti lead. I stick with ILI as his type, because according to himself "introverted irrationals main problem is that they stop at perception.