Nirvana Fallacy (also known as: perfect solution fallacy, perfectionist fallacy) Description: Comparing a realistic solution with an idealized one, and discounting or even dismissing the realistic solution as a result of comparing to a “perfect world” or impossible standard, ignoring the fact that improvements are often good enough reason. Logical Form: X is what we have. Y is the perfect situation. Therefore, X is not good enough. Example #1: What’s the point of making drinking illegal under the age of 21? Kids still manage to get alcohol.
