What bothers me with all that, beyond the fact we are trying so hard to convince ourselves we're living in such unique times bloody gosh aren't we special snowflakes ?, is that it is pretty convenient to push all that into that abstract fuzzy collective consciousness as if it was all a shift in perception and not in actual reality. If we accept the premise, why did citizens shift to a "post truth" state ?
I'm sure the actual scholars who came up with the notion did all that actual thinking work, but the term has now been seized as a talking point that looks awfully like a convenient way to not face some uncomfortable realities. It's not that western liberalism is in crisis, you see, it's because the poor fools are now victim to a "post truth" disorder.