Look to the engineering field and study “automation”.
My guess, when the minimum wage reaches the breaking point and every physical labor job is too damn expensive to pay for, call the “Automation Engineers”, they’ll automate the jobs. Now that minimum wages are approaching the $12-$15 per hour range, we see the trend starting in the food service industry, I expect it will expand to many other areas.
Robot hamburger factory makes 360 Gourmet Burgers every hour...
http://www.freerepublic.com/focus/f-bloggers/3100817/posts