Delegate with nullable ref parameter that could be null?

This can definitely work, although it's highly non-idiomatic... you say you've tried it and failed, but without the code, we won't know what you've done wrong.

In C#, it is not possible to call a method with a ref parameter without an actual reference to a variable.

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.