Resource busy (file is locked)” error in Haskell?

Depends on exactly what you are trying to do. As a rule, in any language, this is probably a bad design because if anything goes wrong either inside the program or outside (e. G user error) then you have destroyed your original data and cannot try again.

It also requires that the entire file be held in memory, which is cool if its just a few bytes, but not so good when someone decides to run this on a really big file.

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.