History PopCultureIsolation / RealLife

* In the UK, Creator/CharlieBrooker is seen as a cult comic genius, especially for hosting the CausticCritic review show ''Series/{{Screenwipe}}'' and the TV panel show ''Series/YouHaveBeenWatching'', and for creating the cult comedy series ''Series/NathanBarley'' and the horror-comedy miniseries ''Series/DeadSet''. In America, he's best known for creating the mega-hit ''Series/BlackMirror'' and nothing else. Many Americans, especially casual fans of ''Black Mirror'' fans, would be surprised by his prior work.

* Amyotrophic lateral sclerosis. People in the field of medicine probably know all about it. The general public knows almost nothing about it aside from a) also being known as Lou Gehrig's Disease, b) Stephen Hawking having had it, and c) the Ice Bucket Challenge.

** In Canada, Quebec has many musicians, actors, and comedians that are unknown in the rest of Canada unless they also do English-language work.

* UsefulNotes/{{Belgium}} is a literal example of this trope. The country is divided by a language barrier and as a result, people from Flanders (the Dutch-speaking part) and Wallony (the French-speaking part) will often not be familiar with celebrities from opposite the language barrier. There are exceptions, of course, but while singer and TV star Annie Cordy, for instance, is an icon in Wallony, she is practically obscure in Flanders. Flemish singer Will Tura is a huge star in Flanders, but unknown in Wallony. Similarly, Flemish comic strips like ''ComicBook/{{Jommeke}}'' and ''ComicBook/PietPienterEnBertBibber'' are well known in Flanders, but completely obscure in Wallony. ''ComicBook/LeChat'' is a pop-culture phenomenon in Wallony, but despite some translations into Dutch, this newspaper comic strip has never gained the same amount of praise or popularity in Flanders. Actor Benoît Poelvoorde is a huge star in Wallony, even voted in the Top 10 of "The Greatest Belgians" in the Walloon version of that contest, but in Flanders, most people only know him from starring in ''Film/ManBitesDog'', if they would recognize him at all.

** Victoria's Secret models can be a case of this trope too, depending on the social circle. The biggest name Victoria's Secret model is arguably Adriana Lima, and probably Giselle Bundchen. You probably could make a argument for Tyra Banks as well. But outside of that it gets real difficult to name drop other models.

** With the exceptions of Ivy League schools and certain other prestigious colleges like MIT and Stanford, most national universities are known almost exclusively for their football and/or men's basketball teams. Some for both (e.g., Florida, Wisconsin, Michigan State), some mainly for football (Alabama, Notre Dame, Penn State), some mainly for basketball (Duke, Kentucky, Gonzaga) and some mainly for ''women's'' basketball (namely, Connecticut and Tennessee). The most publicity an Ivy League-esque institution's sports has gotten lately has been, for all the wrong reasons, Stanford's swimming program.

** Same goes for runway fashion models. Unless you were into high fashion most of those models weren't known outside of the pop-culture bubble, except for Linda Evangelista, Cindy Crawford, and the aforementioned Tyra Banks, and Naomi Campbell. But that's basically it.

** Their attractiveness is what helps them get noticed in the first place despite being D-Listers. Case in point Jaime King pre-''Film/SinCity''. You'd be hard pressed to find someone in the mainstream who knew who she was. But Maxim magazine and people on the internet did. Interestingly enough she hasn't done anything mainstream since. Likewise with Emmanuelle Vaugier prior to ''Series/{{CSINY}}''.

** Cyntd Dourif

* Despite UsefulNotes/{{Christianity}} being the world's largest religion, not that many people (indeed, not that many Christians) are aware of some of the religion's most prominent events and historical figures. Certain saints might be a ''big'' deal in Church History but not too famous elsewhere. Go ahead, pick a random person in your local church and ask if they know what the Council of Nicaea was about and why he was important. Now pick a person in a seminary and ask the same question.

* The popularity of several cult actors fall under this, at most they'll likely just be [[JustForFun/RoleAssociation Hey!, It'sthat guy/girl!!]] But in certain circles they're as popular as Creator/TomCruise  and Creator/WillSmith. A few Examples are....

* The popularity of several cult actors fall under this, at most they'll likely just be [[https://tvtropes.org/pmwiki/pmwiki.php/JustForFun/RoleAssociation Hey!, It'sthat guy/girl!!]] But in certain circles they're as popular as Creator/TomCruise  and Creator/WillSmith. A few Examples are....

** Tane [[=McClure=]]

** Tane McClure

* The popularity of several cult actors fall under this, at most they'll likely just be HeyItsThatGuy!! But in certain circles they're as popular as TomCruise and WillSmith. A few Examples are....

** Even the car molding community is diverse. Opinions on how to mod certain make and model cars vary WILDLY depending on the culture.

** For another exampleof this: Ask a gearhead what a "Donk" is and he/she will reply that it's any car with huge rims, very thin-walled tires, a very expensive and flamboyant paint job and other hallmarks of "bling." Ask an editor at a Lowrider mag (or any "authentic" Lowrider enthusiast) and he/she will tell you that it's specifically a 1970s Chevrolet Caprice (independent of whether or not it's stock or blinged out - it's just a slang term for that specific type of car. He/she will also tell you that "Bricks" are 80s Caprices and "Bubbles" are 90s Caprices due to their general shape). Of course, ask an average person on the street and expect to get a blank stare.

** As a specific example, [=FanimeCon=] in San Jose is regarded as the premier anime convention of Northern California, is the second-largest anime convention after Anime Expo in Los Angeles, and attracts attendees from all over the state for being more laid-back and fan-focused than AX, which has a reputation for being hectic and crowded despite having a much larger venue. Outside of California, however, [=FanimeCon=] is virtually unknown - "why would I go to some community-focused convention with no industry presence when I can go to AX and have a front-row seat at all the latest anime and manga localization announcements?"

** The same problem happens in the mini-conventions going on during big events: Comiket, Haru Comic City, and others are home to both original and fan-based meetups where con-goers can share and talk about specific works; heck, there are even sites to keep track of them all throughout the year. Outside their respective fandoms, however, they're mostly unheard of (a person who isn't in the ''VideoGame/{{Touhou}}'' fandom may never get acquainted with the Reitaisai conventions, for example).

** Victoria's Secret models can be a case of this trope too, depending on the social circle. The biggest name VS model is arguably Adriana Lima, and probably Giselle Bundchen. You probably could make a argument for Tyra Banks as well.