Why are we so bad at sticking to schedules? The explanation can’t just be laziness or procrastination, since in many of these cases the employees were working at full productivity. Instead, psychologists tend to blame a cognitive quirk called the planning fallacy, which leads us to consistently underestimate how long it will take us to complete a project. The result is that our original deadlines are flawed from the get-go.
Whether you are managing a complex professional project, or simply trying to renovate your house, an understanding of the planning fallacy will help to ensure that you meet every goal on time.”
Read more at BBC