It's an interesting paper, but unfortunately it misses the point. Polar dissimilar political beliefs are not the problem. Many countries have this, and even have lively political discussions that remain civil, rallies that remain civil, and elections that remain civil. The actual problem is psychological, specifically dealing with identity beliefs. Once a person takes on a belief as part of their identity, any attack…
> Guess in which of these countries you can have polite (even if heated) dinner conversations about politics! Yes, but that was before vaccination scepticism and AfD (new-ish right wing party that made waves the last few years and now sits in the Bundestag too). Now we (Germany) see similar vitriol. We even had murder (some guy murdered the cashier at a petrol station because they were outraged he asked to wear a mas…
At least we are multiparty countries, so switching allegiance is not as hard as in the US/UK system.
But social networks are really good in their role of Shiri's scissor [0]. We shouldn't feel smug; as you say, we may just be slightly behind in the trend whose shockwave travels through the U.S. first.
(A darkly funny observation: polarization and obesity seem to develop in a similar fashion. Maybe a diet of unhealthy shit and a diet of horrible info content go hand in hand, hacking the same circuits in our brains.)
[0] https://slatestarcodex.com/2018/10/30/sort-by-controversial/