Why were people in and who grew up in mid-century America so obsessed with the pre-modernism era? A few things I've noticed: fascination with escapist westerns/movies; twilight zone episodes where characters fantasize about going back in time...
...to the crazy clothes/costumes the hippie boomers wore at their (disgusting) music festivals. Modernism is a face of lies, an illusion. It is inherently uncomfortable, and people innately knew it. Perhaps it causes anxiety and becomes unnerving to live under?
Post modernism re-examines the "science" and "progress" narratives of the modernist era. But post modernism question of authority means to destroy authority all together, celebrates autonomy and the subjective. It is a confusing and paralyzing mess to live under.
I think there is still a long way to go/a lot to be played out, however what is next will be defined as a reaction to heinous ridiculousness that we suffer through today. It will be decisive and perhaps more authentic, though quality of life will be reduced.