If the work's severe datedness also makes it inaccessible to modern audiences, then you have Values Dissonance.
However, this trope can overlap with Values Dissonance if an intellectual fashion was very short-lived.
Some jokes fall victim to this, when a history lesson is essentially required to explain the joke to folks who weren't around at the time the joke was funny.
While a joke about a president who is long remembered may have many years of life, a joke about a news story that isn't well remembered 20 years later except by the people who were alive at the time or paying attention, or based on a then-popular but now long-gone ad campaign, wouldn't - inverting Don't Explain the Joke because the explanation is necessary.
While just about every work becomes somewhat of a period piece after it becomes more than a decade old due to the characters referencing old trends, wearing out of style fashions and using out of date technology, this trope only really applies to works that wear their dates so blatantly that a viewer can identify the era or even year it was made in as soon as they begin to watch it.
For example, while the 1990s sitcoms dated due to the rapidly-changing nature of what's considered "hip".
" Subtropes include Fashion Dissonance (when this is caused by clothing and hairstyles alone) and Zeerust (when it's just the depiction of future technology that's outdated).
Look for examples of Technology and Society Marching On, Aluminum Christmas Trees, and scenes that would resemble Mister Sandman Sequences if they occurred in an period piece.
(Being completely overtaken by events by time of airing, and being called "instantly dated" by the press, have both qualified in the past.) For most works, it won't be particularly clear which ones really do bleed their production date out of every pore until roughly a decade has passed.If a concept was new in its day but is now well-established and evolved beyond that, you're looking at "Seinfeld" Is Unfunny.If, somehow, the work manages to feel just as relevant today as it did then, if not more so, it's an example of Values Resonance, not this trope.When viewed by someone with even a shaky grasp of history, the historical period is blindingly obvious.Such a scene would have been made at the time with the focus entirely on Cold War politics, but the first thing the modern audience notices are the clunky cell phone and the mullet. Zeerust is when a work's depiction of the becomes dated, so all works with a far-future setting belong there, not here.However - also remember that while older references zing over the heads of younger consumers - newer references zing over the heads of older consumers, too.Even the world of wrestling is not safe from memes, most of which were started either by Wrestle Crap and their original Message Board (now the Freakin Awesome Network forums), their rivals over at 420chan's /wooo/, Botchamania, or r/Squared Circle. Refers to how most people who were fired from WWE jumped ship to TNA after the expiration of a "no-compete" clause.After signing with WWE under his current ring name, Ambrose competed in their former developmental territory Florida Championship Wrestling (FCW), along with their current territory NXT through 2011, before joining the main roster in 2012 as a member of The Shield with Roman Reigns and Seth Rollins.Ambrose won his first championship while in the group, the United States Championship, with his 351-day reign being the third-longest in history and a company record within WWE (who acquired the title upon purchasing World Championship Wrestling in 2001).If the material's universal but the outfits are dated to the minute, that's Fashion Dissonance.Compare Anachronism Stew, which is one possible way to avert/subvert this.