If it only took a twenty-minute operation to completely "delete" the pain, regret, and unbearable past, would you press the confirm button? If this technology is being used to silently tamper with the cognition, emotions, and even the desire for freedom of hundreds of millions of people, who can come forward? This book is a work that points directly to the abyss of scientific and technological ethics, igniting the ultimate speculation on "memory rights"! I will try my best to tell every story!