This is a really smart way of thinking about it:
Why did that happen? The work of the 18th-century French philosopher Denis Diderot suggests an answer. He wrote that performers should “imagine a huge wall across the front of the stage, separating you from the audience, and behave exactly as if the curtain had never risen.” He called this the fourth wall. It prevents actors from being distracted by the audience and allows them to divorce themselves from what they cannot control (the audience) and focus only on what they can (the scene), much as a basketball player shoots the ball without really seeing the cheering (or booing) fans behind the hoop. It creates the intimacy of what some call public solitude. The larger the audience, the more important the fourth wall.
People in open offices create a fourth wall, and their colleagues come to respect it. If someone is working intently, people don’t interrupt her. If someone starts a conversation and a colleague shoots him a look of annoyance, he won’t do it again. Especially in open spaces, fourth-wall norms spread quickly.
No problem comrade, it takes some time to learn about these topics. Some links on these:
