Excellent New Yorker story about life in a dictatorship (contemporary China): Lulu

The story in the current New Yorker, Lulu,  by Te-Ping Chen, comes across as quite a surprise, w/ little to no information about the author other than that she (I had thought the author was male, in that the story is entirely narrated and envisioned from the POV of a young man - a quick look for info about Chen online shows nothing other than that the author is female and lives in Phila.).Did this story just come in over the transom? It doesn't seem to be part of any forthcoming novel or collection, and I'm not sure if Chen has published any other fiction. And it's really good - a piece that I can't imagine any editor turning down (though you never know - I've been surprised before). In the story, set in contemporary or near-contemporary China, a young man tells of his lifelong relationship w/ his twin sister, the eponymous Lulu. Born as the only children into a modest family in city far from Beijin, the story or their lives has been that the sister is the genius and the family's great pride and hope, while the brother is more of a typical young guy of his generation, kind of coasting through a local college and spending most of his time gaming. While in college, Lulu becomes increasingly drawn to political activism, posting provocative video clips and obscure messages on her various online profiles - and over time we watch her descend into mental illness, breaking w/ her boyfriend/fiance and estranged from her parents. The brother, ever conventional, is deeply troubled by his sister's fate - his love for her never wavers - and he eventually gains some recognition as one of the leading gamers in the nation - but it seems that for all his success he can never compensate for the disappointment and sorrow and shame that his sister has brought on the family. The story feels true to life, although that could be just Chen's skill as a writer; either way, it will give most American readers a new and necessary understanding of everyday life in an authoritarian dictatorship; I can't happen here, can it?