Argument to moderation (Latin: argumentum ad temperantiam)—also known as the false compromise, argument from middle ground, fallacy of gray, middle ground fallacy, or golden mean fallacy[1]—is the fallacy that the truth is always in the middle of two opposites.[2] It does not necessarily suggest that an argument for the middle solution or for a compromise is always fallacious, but rather applies primarily in cases where such a position is ill-informed, unfeasible, or impossible, or where an argument is incorrectly made that a position is correct simply because it is in the middle.[3][4]
An example of an argument to moderation would be considering two statements about the colour of the sky on Earth during the day – one claiming, correctly, that the sky is blue, and another claiming that it is yellow – and incorrectly concluding that the sky is the intermediate colour, green.[5]