The fallacy of perfection is the belief that something must be perfect in order to be good. People who subscribe to this fallacy often have unrealistic expectations and can be very critical of themselves and others. They may also be reluctant to take risks or try new things for fear of making mistakes.
The fallacy of perfection can have a number of negative consequences. It can lead to anxiety, depression, and low self-esteem. It can also make it difficult to achieve goals and to maintain healthy relationships. The main reason to this is the tendency to procrastinate and avoid activities due to the fear of making mistakes or not achieving perfection.