The Friendship Paradox
Your friends have more friends than you do. So do mine. This is true for almost everybody, all at the same time.
199117 min read
American sociology and medicine
Nicholas A. Christakis
1962
Physician and social scientist at Yale, director of the Human Nature Lab. With James Fowler he studied how behaviours and states — obesity, smoking, happiness — propagate through social networks, and turned the friendship paradox into a practical instrument for detecting outbreaks before they show up in population surveillance.