There are such things as Protocols for class methods, and they're called.... Protocols. For example, it looks like you want a protocol that looks like this.
A protocol is just a list of method declarations. They can be class methods or instance methods. Example.
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.