Here's a very crude implementation, it does not handle weird cases such as lists having less than two elements and it overwrites duplicate keys, but its' something to get you started.
It's not really 'pythonic' but I don't see a good way to do this without recursion.
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.