And while I agree that economic systems can and should be changed as we shift towards a post-labor society, I'm worried about political obstacles to that. Even in the height of the worst recession in 70 years, we couldn't get Congress to approve food stamps for people out of work. How are those same politicians going to feel about cranking the work week back to 20 hours and tripling the minimum wage to make everything balance out? And if companies end up having to pay the same in labor costs to offset their automating, then what's the point in them automating? Will we actually see automation-enabling technology (3D printing, robotics, etc) hit their own peak and slide backwards in the face of higher fees/social unrest/political change/etc etc etc?
It's a trickier situation than you're giving credit.