A bit like the "parlor walls" in Fahrenheit 451.
"My wife says books aren't 'real.'"
"Thank God for that. You can shut them, say, 'Hold on a moment.' You play God to it. But who has ever torn himself from the claw that encloses you when you drop a seed in a TV parlor? It grows you any shape it wishes! It is an environment as real as the world. It becomes and is the truth. Books can be beaten down with reason. But with all my knowledge and skepticism, I have never been able to argue with a one-hundred-piece symphony orchestra, full colour, three dimensions, and I being in and part of those incredible parlors. As you see, my parlour is nothing but four plaster walls. And here " He held out two small rubber plugs. "For my ears when I ride the subway-jets."