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Nicholas Christakis

Physician & Social Scientist, Harvard
Nicholas A. Christakis is a physician, sociologist, and director of the Human Nature Lab at Yale University, where he is the Sterling Professor of Social and Natural Science. His most recent book is Blueprint: The Evolutionary Origins of a Good Society (March 2019). Follow him on Twitter @NAChristakis

You copy the people to whom you are connected primarily and you come to copy them along a whole variety of traits.  
Social media tools may push a society toward democracy, but they don’t fundamentally alter an individual’s capacity for social relationships.