Favorite Answer

Ad hominem + Argument from Authority.

Invisible pink unicorns exist. You’re not an expert in them, so you can’t say they don’t.

The validity of a claim, such as the existence of god, is not governed by the intelligence of the minds which hold it. Evidence and reason are the deciding factors.

Sir Isaac Newton, one of history’s greatest scientists, was not only intensely religious but also believed in alchemical transmutation. Alchemy is, however, fully incorrect given our modern understanding of chemistry, the atom and nucleosynthysis.

The fact that an intelligent person holds an irrational belief is simply evidence that our brains are able to compartmentalise world-views and models from one another, usually in order to maintain a state of ‘ignorant bliss’ and escape the discomfort of cognitive dissonance.