The language of thought. Yes and he replies, that's how this discussion was started. I was very surprised the first tim ethat he answered but then, how many peopel do you know that emailed him? I don't know anyone that did so emails to him may not be so numerous as you might expect.
He replied, screenshot attached, he just said "thanks, interesting" (im a bit of a fanboy, he is a clear thinker, he cuts through a lot of political shit).