We’ve seen it so many times before, you think we’d learn. The glib, charismatic con man, short on evidence but long on vision. The desirable dream: cure my fatal disease, show me proof of an afterlife, teach me how to unleash my psychic powers. We’re supposed to be good at recognizing those, and rejecting them. But it turns out that the con man just needs to tailor his fantasy to fit, and he can reach even the hard core skeptics. In this case, it’s the vision of shiny spaceship and a voyage to Mars.