Scientific American

September 2023 Cover Table of Contents From the Editor Letters Science Agenda Forum Advances - Astrophysics Advances - Conservation Advances - Evolution/Mathematics Advances - Physics Advances - Tech Advances - Artificial Intelligence Advances - Science in Images/Medicine Advances - Biology/Quick Hits Meter The Science of Health Q&A Evolution of the Earth Shakers Deep-Sea Dilemma Celestial Wonders What Is Narcissism? An AI Mystery The Dementia Defense The Long Shot • nature Outlook: Smoking • From the editor/Contents • DATA: An avoidable health disaster • The battle against tobacco in Africa • A stimulating solution to smoking • Nicotine on trial Mind Matters The Universe Reviews Observatory 50, 100 & 150 Years Ago Graphic Science