“Consider the explanation of thunderstorms as the booming voice of ancestors venting their anger at some human misdemeanour. To explain a limited aspect of the natural world (loud, rolling, thumping sounds during storms) we have to assume a whole imaginary world with superhuman agents (Where did they come from? Where are they?) that cannot be seen (Why not?) in a distant place that cannot be reached (How does the noise come through all the way?), whose voices produce thunder (How is that possible? Do they have special mouths? Are they gigantic?).”