People with autism appear less likely to believe in God – a discovery that has strengthened theories that religious belief relies on being able to imagine what God is thinking, a capacity known as “mentalising”. One of the hallmarks of autism is an impaired ability to infer and respond to what other people are thinking, so the investigators wondered whether this would affect their likelihood of believing in God. In a study of adolescents questioned on their beliefs, those with autism were almost 90 per cent less likely than non-autistic peers to express a strong belief in God.