"As 3D printing and robotics advance, and computer processing power, as well as cheap or even free energy takes hold, we may find ourselves in a world abundant with everything one could ever need."

Welp - that is a big assumption, which is totally unargued for in the article.

Also, agriculture and service industries (doctors and scientist included), would still need to work even when no physical production would be taken place besides 3D printers. Are we assuming they are studying hard for 7+ years while everyone do what they want? In general i am calling sensationalist bollocks on this article, no point is substantiated besides the authors gut feeling.