Core postmodern concepts like the hyperreal and simulacra are more relevant and true than they have ever been.
Furthermore, the article claims that postmodern is characterized by an ironic self awareness, and never has this idea been more prominent in culture. In recent years I have noticed that TV commercials have become more and more self-aware. Take for example a recent commercial by what I believe was Verizon. It says something like “More coverage, more data.” and then another actor comes into screen saying “and more people saying more.” If this isn’t ironic self awareness, I’m not sure what is.
Those are postmodern concepts about culture. But the postmodern metaphysical and epistemological nihilism are, as another commenter said, basically bedrock in terms of philosophy.
.. The core of postmodernism is that we have exhausted modernity — and indeed there are no trends that are “new under the sun anymore”, not just because everything has been done before (which is almost true), but because society doesn’t care about following this or that form en masse anymore and then proceeding to another (e.g. how baroque turned romantic, turned 12-tone, etc. or similarly in any other sphere).
Instead, everything is fragmented, and everybody (artist or not) can do whatever they please and have an audience/followers. There is no canon and no single “normative” culture the way it was 80 or 100 or 150 years ago.
Plus, nothing is able to baffle anyone anymore — in the way that each generation before could shock some part of the established culture (up to perhaps punk, but probably not even that, and not even 50s rock n’ roll — it only shocked the most conservative parts of society, and had no problem being marketed, sold, and dominating the airwaves in record time).
Postmodernism is also about having access to all the cultural production and modes of the past, and the internet and co made that even more so. Artists, politicians, marketeers, etc can borrow from any period, and repackage and resell everything, combine it, etc.
All of these things are what are described as the “postmodern condition” by the now dead French theorists of the postmodernism.
And none of those things is going away.
Even a total return to modernism or classicism across all artists for example, would still be postmodern — because before post-modernism art didn’t regress to previous periods, it invented new modes.
.. Nothing is fragmented, because everything has been reduced to transactionalism.
You can do whatever you like, as long as you’re trying to make money (or sometimes more abstract social credit) by selling it/you as hard as possible to your customers.
And there are only potential customers now – not audiences in the old scene-with-common-values sense.
Postmodernism, such as it is, is now a marketing gimmick, occasionally used to add some spicy irony to make sales efforts more successful.
The real horror is that this applies everywhere – not just in commerce, but in the arts, the sciences, academia, and especially in politics.