va·lid·i·ty /vəˈlidədē/ noun 1. the quality of being logically or factually sound; soundness or cogency - www.thefreedictionary.com/validity Yes validity = factual. If your opinion isn't factually sound then it is not valid. Would the CEO of Wal-Mart ask for the opinion of a little boy from N Korea about investment strategies? No. Because his opinion is [i]invalid[/i]