iPods are great but you don’t hear NEW music. You form a shell around what you know and once those ear plug are in, no chance encounters with new music or new people can happen. 

But I get that people need to set up a controlled environment to maintain sanity. My control cocoon is when I clean my bathroom and kitchen grout. Because I cannot control the markets, the trajectory (down) of my career or the health of people I love, but I can make some square feet of grout look great.