"it's different, though, Albus. Potions can be controlled. Making them is a bit of an experiment, but if it goes wrong, you just re-make it and try again. Divination is different, James can't unsee the past or unpredict the future, and when he sees something, it changes him. He already seems more withdrawn than normal. I know he's not the most sociable, but now he won't even speak to me much. He just sits there transfixed with his crystal ball"