Inside Out shows similarities in branching structures between fields of biology/botany and the body. The main function of this structure is arterial, within a plant or a tree, a river channelling water, a body circulating blood from the heart to the fingertips. As ubiquitously as it appears in nature, the motif of the branch is used in genealogies,  mathematical information, and choices of our destination appear as forks in the road before us.