> Now the long slide since 2008 will continue until some disruptive element creates economic opportunity.
Personal automation in the form of machines that can make more machines, which in turn make the stuff you need. Jobs and income will go down, because stuff you make for yourself isn't counted as work or income. Despite that, production will go up and people will be better off.
For example, automated machine shop and foundry makes robot farm tractors, among other things. The tractors in turn grow food for the owners. Since the machine shop is too expensive for the average person, they would be run as cooperatives, like my power company and credit union are. When you make your own stuff using your own equipment, you get to skip all the middle-man markups and profit, and you don't pay income or sales taxes on it. You are also immune to layoffs, because you own the equipment. You don't have to work very hard for it, either, because the equipment is mostly automated. A regular farm tractor can produce food for 50 or 100 people, an automated one can do at least as well. You still need a farmer to oversee the tractors and decide when to plant and harvest, but for most people the food just shows up on a regular basis.