NSString @property, using copy instead of retain?

Yes, it's so that it can make a unique copy without affecting the existing data. The synthesized setters essentially look like this.

Remember that there is an NS*Mutable*String. It would be really bad to be able to mutate the contents of a string that some other object owns (say, by deleting half its characters), especially if you don't realize you're affecting another object. Therefore, it's nice for the other object to make its own copy.

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.