In this final episode of our first series, Gareth and Bill look at interesting research using satellite signals to geolocate, as an alternative to GPS. And Bill muses on his current thinking on the state of AI, and in particular why LLMs don't play language games and can't be part of the community of language users, since they don't have an inner life. (References the book Metaphysical Animals) The Gareth and BillCast will return in a few weeks.