“Do you think about me?” So asks a disembodied voice at the beginning of a TikTok from user @velvet.mind . The question is followed by hypnotic synth pulses, hissing static, and sped-up, garbled human speech. An accompanying visual: a montage of immaculately made-up and stylish women who could all be models—indeed, some of them probably are. The text overlaid on the video reads “extreme beauty subliminal.” The minute-long clip has nearly 300,000 likes and 1.4 million views. Why all this engagement for a bit of vaporwave ephemera? Because an online community of young women sincerely believe that sustained exposure to these sounds and images will improve their physical appearance.…