The article discusses the importance of the duty concept in negligence law. The authors argue that duty should be a central element in determining liability for harm caused by negligent conduct. They highlight different aspects of duty, such as whether the defendant had an obligation to prevent the harm suffered by the plaintiff. The authors believe duty should be considered alongside injury, breach, and causation in negligence cases. They criticize the current treatment of duty in the law, suggesting it is often used as a limiting factor rather than a proactive tool in determining liability.