… Sample topics include astronomy, internet censorship, euthenasia, vaccination, nuclear energy, climate change denial, religious and non-religious beliefs, 'alternative' medicine, rationality, logical fallacies, anything science-based and any aspect of society that is being undermined by nonsense but should be illuminated by evidence. All you need to join the group is a questioning mind, good humour and a sociable disposition. And $2 per meeting. The mob is eclectic, difficult to categorise and m …