Filter Bubble [...]

The version of the world presented to us in increasingly a consumer product, aimed to please rather than inform.

Algorithms such as the one that powers Facebook’s news feed are designed to give us more of what they think we want – which means that the version of the world we encounter every day in our own personal stream has been invisibly curated to reinforce our pre-existing beliefs. When Eli Pariser, the co-founder of Upworthy, coined the term “filter bubble” in 2011, he was talking about how the personalised web – and in particular Google’s personalised search function, which means that no two people’s Google searches are the same – means that we are less likely to be exposed to information that challenges us or broadens our worldview, and less likely to encounter facts that disprove false information that others have shared. Pariser’s plea, at the time, was that those running social media platforms should ensure that “their algorithms prioritise countervailing views and news that’s important, not just the stuff that’s most popular or most self-validating”. But in less than five years, thanks to the incredible power of a few social platforms, the filter bubble that Pariser described has become much more extreme. [(Source)](https://www.theguardian.com/media/2016/jul/12/how-technology-disrupted-the-truth)

On social media, Streams Don't Merge.

Examples of filter bubbles: Brexit Bubble, Sanders Filter Bubble

Filter bubbles exist outside of social media. See Party Affiliation Bubble

Maybe the real stress of social media is that we are Surprised By Disagreement

Algorithms Don’t Polarize People, People Do [...]

“Individual choice has a larger role in limiting exposure to ideologically cross cutting content [than the News Feed algorithm],” a recent study by Facebook’s own data team ruled. “We show that the composition of our social networks is the most important factor limiting the mix of content encountered in social media.”

Chart showing increasing polarization dating back to the 1970s

In other words, the thing most polarizing people online is people themselves — a phenomenon that the latest string of anti-Trump apps, browser extensions and add-ons would not appear to help. On top of the unfriending site, there’s an iPhone app called Trump Trump that will eliminate the candidate’s name from the websites you’re browsing, as if he didn’t exist. Remove Donald Trump from Facebook will, as its name suggests, scrub the candidate from your News Feed. A mountain of Chrome extensions will replace Trump’s name or picture with a series of other things: “Voldemort,” “your drunk uncle at Thanksgiving” — even the smiling poop emoji. (Source)