Streamers and pop culture on Instagram: "An unexpected ending hits hard because it creates a prediction error in your brain. Your mind spends the story anticipating a certain outcome, and when reality flips the script, the amygdala and prefrontal cortex light up, producing surprise, excitement, and even a rush of dopamine. Psychologists say this is why twist endings stick in memory longer than predictable ones — your brain tags them as important, unusual events. Writers use subtle foreshadowing