You typed something you regret. Maybe it was embarrassing, incriminating, or just deeply personal. You delete the conversation, close the tab, and exhale. But is it really gone? Does the AI remember? Under GDPR and similar laws, you have a "right to be forgotten" you can demand that companies erase your personal data. But does that apply to your prompts? And what if your prompt was already used to train the next version of the model? Can you delete a thought that has already been absorbed? This is the new frontier of digital forgetting. Your prompts are data. They are personal, potentially sensitive, and increasingly difficult to erase once they've entered the training pipeline. Let's explore the limits of digital forgetting. By the end, you'll understand what rights you have over your prompts, why deletion is harder than it seems, and what you can do to protect your digital past.…