Waiting in line can be boring because it can take up a lot of time that could be better spent doing something else. It can be boring because it often involves waiting passively, not being able to engage in conversation or other activities. Additionally, there is often a feeling of frustration due to the slow progress of the line and the loss of autonomy while you wait.

I’m reminded of prisoners in concentration camps who were educated people and spent time learning from each other, their languages, cultures and skills, and not only that, by recalling all the things that they had ever learned and going over that material mentally. And they would persist in recalling the memory of places where they had been down to very detailed facts. It just shows the resourcefulness of individuals who were under extreme conditions conducive to boredom, putting their minds to work constructively.