Despite awful pop stereotypes about scientists slaving away to uncover monolithic truths about the universe, disagreeing only occasionally when a new theory comes along, reality turns out to be far more complicated. We scientists have to break problems down into smaller parts, dissecting one aspect of the observable world at a time. Occasionally, researchers working on different problems, or coming from different backgrounds, discover just how different they are and just how messy the reality they are observing can be. The encounter often undermines old certainties, and it can leave scars.
