The post discusses the common misconception that it takes 21 days to form a habit, citing research suggesting the average time to establish a habit is around 66 days, and sometimes as long as eight months. Several user comments reflect on their personal experiences with developing habits, emphasizing that the duration can vary greatly between individuals and habits. One user points out that after about 21 days, habits lose novelty, and you begin to identify them as part of your identity. Another comment discusses the role of effort, reward, and motivation in forming habits, highlighting that making habits easier and more rewarding can lead to quicker establishment. The discussion indicates a shift towards understanding habits not just as behaviors to be tracked, but as part of a broader relationship with personal growth and well-being. Some also note the importance of being flexible and patient in the habit-forming process.