A woman is standing at the corner of 23rd Street and 6th Avenue screaming into her phone. She’s doubled over, and as she screams she rocks back and forth. There’s nothing particularly unusual about her appearance – she’s dressed in an expensive-looking jumpsuit and trainers, and a trendy-looking tote bag is draped over her right shoulder; and yet her behavior is so alarming that a small crowd has gathered on the corner, watching her in stunned silence. Her screams are nonverbal, shrill and prolonged. After each scream she rocks back, as if gathering her breath or strength, then repeats the same wail, holding her phone in front of her mouth as if the device itself is the object of her fury.