When making oatmeal you really want to simmer it so it does not burn. If it boils it can really create a mess as the bubbles explode all over. Mostly cook it on simmer to protect it fron burbning.
If you need to cook something long and slow, you would simmer it rather than boil it. An example would be a stew that typically uses a tougher cut of meat. Simmering the stew would tenderise the meat by a long slow cooking method.
Boiling it would cook it but the meat would be tough. Some foods such as sauces may curdle if cooked too quickly and some vegetables may disintegrate if boiled.
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.