It just means that your computer doesn't have enough memory set aside for the processes you currently have running. You can either wait a bit for it to re-allocate memory, or you can shut things you're not currently using. In the long run, you should buy more RAM.
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.