The inevitability of problems
I spent the day working on geometry problems. I do not have answers for several problems, which means, most likely, I will spend the evening thinking about them until I fall asleep.
I wonder how much of the day the average person spends thinking about problems whether geometric or not. I suspect most of the day is taken up with the activity. Even when problems do not thrust themselves upon us, we invent problems faster than we solve them.
It seems rather obvious, but I never thought about it before.