Concluding that because you don’t understand something, it must not be true, it’s improbable, or the argument must be flawed. This is a specific form of the argument from ignorance .
Examples:
- Bill the Eye Guy: The development of the eye is monophyletic, meaning they have their origins in a proto-eye that evolved around 540 million years ago. Multiple eye types and subtypes developed in parallel. We know this partly because eyes in various animals show adaption to their requirements. Toby: Uh, that sounds made up. I don’t think the eye could have evolved.