"I find a scrum of reporters interviewing a child in a purple puffer jacket, pink mittens, and a homemade-looking knit hat. It takes me a minute to realize that it’s Greta. She is 17, but could pass for 12. I can’t quite square the fiery speaker with the micro teen in front of me... Of course, this is emphatically wrong. Greta Thunberg has Asperger’s, which, she says, gives her pinpoint focus on climate minutiae while parrying and discarding even the smallest attempt at flattery. We stand near the Swedish Parliament house, where less than two years ago Thunberg started her Skolstrejk för klimatet, School Strike for Climate. Back then, it was just Greta, a sign, and a lunch of bean pasta in a reusable glass jar. Then it was two people, and then a dozen, and then an international movement. I mention the bravery of her speeches, but she waves me away. She wants to talk about the loss of will among the olds."