This was our last conversation on earth. We went out laughing. We went out talking about ghosts, the shadows we leave behind. The body is gone. It was organic, composed of carbon molecules. But there are trees that live thousands of years. How do they do this? In Tasmania, there is a grove of King’s Holly that is thought to be 43,000 years old. They’ve survived by growing up, falling over, and starting again. A group of 47,000 Quaking Aspen in Utah, nicknamed the “Pando,” are all connected by a single root system. Scientists say, according to the trees’ genetic makeup, they could be a million years old.