No matter how many Excel workbooks (of one version) you open, they all still operate off of the same process. If one workbook demands all of the resources of that process, then all of the workbooks will suffer the same lag.
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.