Yep, my understanding is also that Berger and Luckmann is the source of the phrase. That looks like an interesting article—I'll check it out. Here's another (

Yep, my understanding is also that Berger and Luckmann is the source of the phrase. That looks like an interesting article—I'll check it out. Here's another (shorter) one that deals with the issue: https://arstechnica.com/tech-policy/2008/11/post-truth-spawned-by-liberal-left-long-ago-brexit-trump/ https://arstechnica.com/tech-policy/2008/11/post-truth-spawn... (There's a very brief summary in the section "The truth about post-truth")