How to create an echo chamber: the guide Why are people so aversive of practical discussion? If not Facebook (which most people use, unlike specific discussion

How to create an echo chamber: the guide Why are people so aversive of practical discussion? If not Facebook (which most people use, unlike specific discussion sites) then where? I admit that not all Facebook debates about politics are very productive but they need to be held somewhere. I understand this article is supposedly aimed at non-Americans, but the point stands. No matter who is elected it will have consequences for all.