AI Astrology Is Getting a Little Too Personal

The first thing I ask Banu Guler, the founder of the astrology app Co–Star, is whether she can read my chart. We swap phones to look at each other's profile. After we put our devices aside, she scrawls my astrological chart from memory into her notebook, a circle bisected by various lines like an erratically cut pie. There's a 90-degree square between my sun and my Mars, which is, she lowers her voice and chuckles, "rough." Apparently, it's the shape that represents "sad and temporary."