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After we steered down a lush forest path, the GPS stopped working. I had no idea where we were, but the driver knew the way by heart. He had seen the forest many more times than me, having visited twice a year with his father. Back then, he was a nervous graduate student while I was still a child. How could I have known that he would become such an important colleague and mentor in the years to come? We had both grown up so much since those days.