YES. The cover captures the sun rays during the day by acting as a giant passive solar collector. The thermal qualities in the cover hold the heat in the pool at night.
Their combination may increase water temperature as much as 8 to 10 degrees easily increasing your swimming season. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.