The Dumbbell Effect of Political Polarization

Americans must rise above confirmation bias, groupthink, and tribalism

Bill Sullivan Jr
GEN
Published in
4 min readJul 29, 2021

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Image: Free-Photos/Pixabay

Political polarization is nothing new in America, but recent studies show that a greater number of people are migrating further toward the extreme ends of the spectrum. Instead of a bell curve, the distribution of Americans along the political spectrum these days looks…

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Bill Sullivan Jr
GEN
Writer for

Bill Sullivan is the author of “Pleased to Meet Me: Genes, Germs, and the Curious Forces That Make Us Who We Are” (National Geographic Books).