A more mundane one, but people on reasonably normal incomes living in a house that’s at least one order of magnitude more expensive than they could ever afford even if they purchased it twenty or thirty years ago. Its particularly bad in things set in expensive areas like London or New York or Tokyo. Like being able to afford a house in central London rather than renting a flat with three other people takes substantial money, you aren’t going to be afford that if you work in a supermarket.
I would like them to try to go to Mars this coming January. I am sure with enough fuel one of Elons rockets can get it moving in the right direction, they can wing everything else as they go.