Of Burning Man’s 10 Principles, Leave No Trace is the most important. The concept that supply chains are linear, create trash and terminate in landfill, is a human construct. In nature there is no such thing as waste, systems are efficient, circular loops that feed one another. We must learn to embed this understanding in the way we engage with the world. The vast beauty of the Playa is framed in its emptiness, and it is our responsibility to leave as profoundly empty as we found it.