From a story in New York magazine by James D. Walsh headlined “The Meticulously Crafted Adventures of David Grann”:

David Grann is the first to say he isn’t a natural-born explorer. Thanks to a degenerative eye condition, the longtime New Yorker writer sees the world as though looking through a windshield during a rainstorm. He doesn’t hike or camp, and he has a tendency to take the wrong train when he rides the subway.