If you look at the GridFSFile source, you'll see that $bytes is only used when overwriting the contents of a file. The $filename property is sometimes set during the getter, but is otherwise used when changing the filename in GridFS.
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.