[imarg]

I think procrastination time is also important and necessary.

I just completed a course on Coursera (Learning How to Learn - https://www.coursera.org/learn/learning-how-to-learn/). One of things mentioned is that our brain has a focused and diffused mode and both are needed for us to learn.

So, I guess, something similar happens when we are working. You need both focus time but also a down time to achieve things. Of course, too much procrastination is also not a good thing.