Act as a cultural anthropologist with 10 years of experience studying non-verbal communication systems. Describe a futuristic society where [interpretive dance] is the primary mode of communication, replacing spoken and written language entirely. Explain how [social hierarchies] are established through dance proficiency, how [conflict resolution] is performed through choreographed duels, and how [daily activities] like shopping or education are conducted. Include specific examples of how emotions, complex ideas, and historical events are expressed through movement. Discuss both the advantages (e.g., universal understanding across languages) and challenges (e.g., physical limitations) of this system. Make your description vivid and imaginative, painting a clear picture of this unique civilization.