Think about what the black box could represent in each of the areas of knowledge that we have discussed so far. What metaphorical "black boxes" exist in each of them? What approaches are taken by people working in each of these areas of knowledge in order to deal with their "black boxes"? Do any of these approaches correspond in any meaningful way to your approach to the real black box? Are "black boxes" sometimes deliberately created in some disciplines in order to help us in the creation of knowledge?