The only thing that got the Troglidites to leave their city is that somebody came around and told them, hey, you realize that there's probably this immortality river. Some a priori argument that convinced them if there was immortality, remember there must be a mortality. I find some solace in the thought that it's all that this has been the common experience of all humanity that we might tell the same stories. But yeah, I think he's being an optimist, but he's, but his eyes are open to what’s going on.