DidReceiveMemoryWarning, viewDidUnload and dealloc?

This is wrong. Anything that you recreate in viewDidLoad should be released (and set to nil) in viewDidUnload. As you mention below, didReceiveMemoryWarning is also called when the view is visible.

In didReceiveMemoryWarning, you should release stuff like caches or other view controllers you are holding on to that can be recreated lazily the next time they are required (i.e. , by implementing their getter manually).

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.