The phrase 'insulated world' is correct and usable in written English.
It can be used to describe a situation where a person is isolated from the realities of the world because of their privilege. For example, "The wealthy grew up in an insulated world, untouched by the struggles of everyday life."
When Kent shows up at the studio, it's clear that he's just a younger, less sophisticated version of Barry, hungry for attention in the station's insulated world.
Still, students of Google's culture wonder whether Ms. Mayer and her management style would flourish outside the insulated world where her tenacity and curiosity mirror the company itself.
She offered an unfiltered view of the changing landscape from her driver's seat, and a glimpse into an insulated world where time is as frozen as the Dixie Cups.
As Amanda Blum, a Portland-based technology consultant, put it in her post about the situation, "[Sexism] runs so deep and so organic to the industry that even men who would see it in other places don't recognize it in our insulated world".
In the days leading up to England's departure for the Ashes it might have been possible to form the opinion that Michael Carberry, picked for his first major overseas tour, had already entered the insulated world of the career England cricketer, a football-style structure of careful media management and celebrity-style cosseting.
In short, the once-insular and insulated world of the Internet was actively spreading its tentacles into the real world.
While the scope of poverty in Washington is well documented, another recent story in the Washington Post provided some insight into just how insulated the world of the city's well-to-do has become.
The UK has long pictured itself as insulated from world affairs, a long-arm power able to pick and choose the regions it engages in, a financial hub afloat in a fluid global economy.
At least that might help to insulate the world's best-known media baron from further concerted attacks as his Star rises.
Instead, the meeting is being seen as a test of willingness of rich and poor countries to buckle down in the next 15 months and do the work needed to reach a deal that will cut greenhouse gas emissions and help insulate the world from effects of climate change.
We were insulated from their world and any other world but our own.
