Blind people use facial expressions in the same way as sighted people do, including those strained smiles you use when you’re not really happy. This provides more evidence that facial expressions are innate and not learned.

Where do you think love comes from, Mr Atheist? Can’t see love in your microscope, can you? Actually, you can, if you’re doing brain scans. And what they find is that some people still feel twittery about each other after 20 years, instead of the 18 months most of us get. They call these couples ‘swans’, but that’s not a good name. Swans are cranky critters. But I think Ms Perfect and I will still be swanning about, still coursing with dopamine in each other’s presence, even after 20 blissful years.

Fear the hammer of Thor! A man dressed as the God of War after a costume party frightened off a burglar. Maybe the burglar was a philosophical theist who realised that you can’t discriminate between two supernatural claims — it doesn’t matter whether the god is Christian or Norse, you’d better book. Personally, I’d be much more frightened of Thor than of Jesus. People in sandals are easier to outrun. On the other hand, if Jesus has come as that psychopathic Old Testament god, then all bets are off. Best to run first and ask theological questions later.