Seems like a re-phrasing of truisms cautioning against 'perfectionism' like, "perfect is the enemy of good." The idea behind these things is that perfectionists

Seems like a re-phrasing of truisms cautioning against 'perfectionism' like, "perfect is the enemy of good." The idea behind these things is that perfectionists tend to overestimate how much actually needs to be done to achieve a goal. It is a form of the planning fallacy.