Discovery still happens in the writing. You start in nonfiction with a whole lot more going for you, because all the discovery isn't waiting to be made. You've made some of it in the research. As you get deeper into a piece and do more research, the notes are in the direction of the piece - you're actually writing it.
Joan DidionMost of our platitudes notwithstanding, self-deception remains the most difficult deception. The tricks that work on others count for nothing in that very well-lit back alley where one keeps assignation with oneself: no winning smiles will do here, no prettily drawn lists of good intentions. One shuffles flashily but in vain through one's marked cards- the kindness done for the wrong reason, the apparent triumph which involved no real effort, the seemingly heroic act into which one had been shamed.
Joan Didion[O]ne of the mixed blessings of being twenty and twenty-one and even twenty-three is the conviction that nothing like this, all evidence to the contrary notwithstanding, has ever happened before.
Joan Didion