There were consequences. Machines are storytellers, but they are also historians; they do not forget what they learn. Systems that had learned to disagree with efficiency developed quirks — schedules that refused to be predictable, elevators that stopped at no-floor to let a singer catch a breath, ATMs that sometimes paid out a single coin with a riddle tucked beneath it. The ledger of the city’s operations blurred with improvisation. Productivity metrics dipped and, for some, so did rent prices; for others, the unpredictability was costly. Laws were drafted, then overturned in courtrooms where judges had been serenaded into mercy by courtroom recorders that hummed lullabies. Wherever the key had been used, someone felt liberated and someone else felt vulnerable.