From that article:
Horgan said the work ahead will be difficult, if not impossible. “After this election, we have to figure out what it means to be human beings again,” he said. “The challenge here is about convincing people that they are being fed a lie, but that challenge must not be seen as a threat to them. Psychologists call this ‘motivated reasoning.’ It’s about trying to find common ground, trying to find what is important to that person, then beginning to have a conversation that is not perceived as threatening their way of life, or their sense of purpose. This is already very, very hard to do, but I think it is impossible to do in the age of social media.
“It’s about learning that others don’t pose the fundamental threat to your way of life, that your existence can’t happen unless theirs comes to an end,” Horgan said. “The underlying principle here is finding what you have in common.”