Julian Cope presents Head Heritage

Thanks for the link - I hadn't seen that clip! It's possible that a negative result would mean very little to a dowser, since their beliefs appear to be justified by non-empirical means from the start. The failure can be rationalised without undermining their confidence in a practice which is largely intuitive and esoteric.

You're right about Dawkins. For some people he's nothing more than a kind of fundamentalist sceptic.