Law of Inertia
Newton’s First Law of Motion is – An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
This definition is not just aplicable in physics, but also to the human mind. Has it ever happened to you that you do not wish to do absolutely anything? You realise that there are many activities to be completed, but do not wish to do anything because you are in no mood to do it. I would say, it is an inertia of mind that simply discourages to do anything. Strangely, this happens to me even when I am extremely busy.
In short, I think it simply is a shutdown or rather a state of lazyness. Writing daily is not easy and I am now in a state of writing inertia. 🙂