If entertainment is superfluous then you have an enviable vision of man kinds purpose. As far as I can tell amusing ourselves until we die is our whole deal. Entertainment isn't superfluous, entertainment is the truest and most important industry we have.
Maybe it's just my vision of man kind's purpose. I was speaking as entertainment as a profit driven industry, not entertainment all together.
Also, in talking to friends, when I used "service industry" it may not have conveyed what I thought it did. I grew up in a tourist area and service industry was used for people who worked in restaurants and hotels.
The natural conclusion for this future lack of jobs for many people is basic income. I'm confident if people didn't have the 9-5 they would be writing books, putting on plays, and preparing food for each other--just not necessarily for maximizing profit.
