Find a flaw in an algorithm by testing it against a simple case. Assume a file with 4 bytes and progress is reported for each byte. So you'll get the callback 4 times with totalBytesTransferred at 1, 2, 3 and 4.
Right now you are adding them to bytesCopied so you'll add a total of 10 bytes. For a file that's only 4 bytes.
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.