Here’s how you create echo chambers on Facebook

Take it from the president of the United States: Human beings are creatures of comfort. We're not particularly inclined to seek out contradictory information and would rather believe things that reinforce our worldview. 
Sometimes we post those things at 6 a.m. to make a point to our foes, even if our claims are fact-free. 
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Most of the time, we pay a price for that willful ignorance, but researche