Normal means conformance to e.g. a standard. Let's assume the reasonable communal standard of 'factuality', i.e. 'what exists in facts'. Individuals may not be

Normal means conformance to e.g. a standard. Let's assume the reasonable communal standard of 'factuality', i.e. 'what exists in facts'. Individuals may not be able to tell with 100% precision about the entirety of a fact. But if we take some math problems like 1+3, 2+2, 5+5, etc., and have a person going around believing, teaching, and attempting to apply a different principle (equation, i.e. meaning/relationship of the numbers) then they're going to get different answers. It's wrong to say that 1+1=3 as if it's mathematics. Therefore, it's natural and consistent to conclude that a person who has the wrong answer or wrong view of questions cannot behave normally to those questions nor to the standard of 'what is' in the questions. Have you ever heard that angle on the matter?