Relying solely on memory without taking notes can lead to significant drawbacks such as forgetting up to 40 percent of new information within 24 hours. Without a systematic approach to recording key points and concepts, individuals may struggle to recall details accurately over time. This reliance on memory alone also limits opportunities for deeper understanding through reflection and organization of information. In educational settings, not taking notes can hinder academic performance as it becomes challenging for students to review material effectively or prepare for assessments.