One potential issue is that it won't follow symlinks (that is, if "$0" is actually a symlink to the script, you'll get the directory containing the symlink, not the actual directory containing the script).
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.