I've written a lot of books now; I've been published for over 30 years. I hope with every book I learn something new, and with every new novel I try to improve the process of writing.
It is of no help to us that there is an absolute truth of the matter of things because unfortunately, none of us are in a position to say definitively what that is - although we all think that we are.
The demands are related to their questing of the best possible out of the people concerned. It's this going for the highest possible factor that I'm very concerned about.