Before one can establish what makes the human brain powerful, one ought to consider what makes anything powerful. That is, one must get to the basis of power itself. Power itself is abstract. It is not something one can touch or taste, but refers to particular kinds of relationships. A person can have power over (as in power over another human-being, or power over impulses, and so forth), power to (as in the power to get something accomplished), and power within (as in personal empowered). Given this, the more powerful the brain, the more it will have power over physical necessities including basic appetites, emotions, and impulses. The more powerful the brain, the more it will have power to engage in high-scale contingency thinking, dispassionate contemplation, passionate creative contemplation, complex calculations, highly detailed images, reason effectively, and so forth. Finally, the more powerful the brain, the more powerful will it be in itself, besides the power afforded by power over and power to.