Reports of facts' death have been greatly exaggerated. Effective communication jettisons the false dilemma in favor of a more holistic view of how people take in new information on contentious topics.
Beneath simple labels like post-truth, alternative facts and fake news is a complex set of issues. Any debate about the problems needs to start from some common points of reference.
When it comes to facts versus opinions, just remember that not all facts have been true, and not all opinions should be dismissed either.
Alternate realities don't just exist in politics – and not all falsehoods are lies. Distortions of the truth can range from a normal part of human nature to pathological.