1519

 "Mr. Sabin-Miller and Dr. Abrams, both mathematicians, call this effect “repulsion.” In addition to the “pull” of repeatedly seeing viewpoints that reinforce our own, inside of our online echo chambers, repulsion provides a “push” away from opposing viewpoints, they argue. Importantly, this repulsion appears to be a more powerful force, psychologically, than attraction to our own side of a debate." 

https://www.wsj.com/articles/why-social-media-is-so-good-at-polarizing-us-11603105204?st=hjekiifb1hscw4x&mod=elckp7