As Orwell knew only too well, if the concept of objective truth is moved into the dustbin of history there can be no lies. And if there are no lies there can be no justice, no rights and no wrongs.
People universally believe scientists' solar eclipse calendars, but vaccine warnings or climate predictions are forms of science that strangely do not enjoy equivalent acceptance.
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.
The global food system has been operating in post-truth mode for decades.
Pundits have been keen to link post-truth to post-modernists, post-positivists or any other 'postie'. They should turn their energy to forming a real popular front against Trump's faux populism.