"[Regarding] the soul, I'm a little wary of any discourse on that topic that pretends to have an answer, so I tend to keep my musings to myself. There is interesting, legitimate metaphysical work on the topic going at least as far back as Leibniz and continuing today, following the theme that consciousness, or at least computation, might be at least as fundamental as phenomena such as space, time, energy, and matter, which are the usual subject matter of physics. I follow that sort of thing with interest but with very modest expectations that answers will be arrived at during my lifetime."