Sure seems like lots of doom & gloom.  Historically automation has freed up human labor to pursue other interests.  35 years ago, when i started in IT, if someone had told the "financial analysts" how much of their jobs computers would be doing today, I'm pretty sure they'd all think their jobs would be long gone.  Last time I checked, the "financial analyst" job market still seems to be fairly robust.  Point is, automation does take over some aspects of jobs but frees up time to pursue others.

And that's to say nothing about human intuition.  Does the author foresee computers taking that over, as well?  Sure, with sufficient programming & analysis, computers may be able to achieve an "error-free track record".  But only of past results.  Artificial intelligence notwithstanding, I seriously doubt computers will be able to foresee (with any accuracy) the next recession or economic downturn any better than humans.

And "day laborers" and "construction workers"?  Really?  Someone's going to come up with a machine that's cost-effective to do "day laborer" tasks like clean up a yard, trim trees or even fix plumbing in a narrow, confined space?  Maybe someday but is not anything over which I'd lose any sleep if I were a day laborer or construction worker.

To be sure, there's no doubt automation will take over some jobs, but again, historically that's opened others up.  Case in point: look at the expansion of the IT industry over the past 30-40 years.  We're pursuing things in IT that were only dreamed of 30-40 years ago. 

IMO, the author has a valid point but carried the conclusions a bit too far.