So, they built a model for polarization. I read through the article a couple times, but maybe I missed it - I don't see what predication this model makes that c

So, they built a model for polarization. I read through the article a couple times, but maybe I missed it - I don't see what predication this model makes that can be useful or can test it. The article also implies that being on a political team is the only reason for polarization. Maybe that's a big part of it, but it seems to me that ignoring incompatible world views is uncharitable to all involved, and almost certainly a way to increase misunderstanding.