Argument to Moderation

The Argument to Moderation, also known as the "Middle Ground" fallacy, is a logical fallacy in which a person determines that the correct answer must be a position between two extremes or a compromise between two positions, merely because of its moderation, and not because of supporting reasoning or statistical basis.

An example of the Appeal to Moderation would be hearing two arguments on vaccines causing Autism and concluding that because one side believes they do, and the other side does not, that the truth is that vaccines probably cause some cased of Autism.

This is fallacious because the evidence does not support vaccines causing any cases of Autism, so the middle ground is not logically sound.