That's not quite what I said. I specifically meant that robots will be able to take over the task of moving things around in the five-year timeframe. That is, the guys moving bins of things from here to there. We've already seen warehouses adopting this technology with a fairly high degree of sophistication today, so it's not really a far-out prediction. I'm not predicting that something that doesn't exist will be created, I'm predicting that something that does exist will be commercialized to the point it will become irresistible.
Remember, even if the robots are initially expensive, to replace an employee for a year opens up about $50,000 in capital to play with, assuming a low-paid employee + insurance (yours, not the employee's) + overhead, give or take $20,000. $50,000 is becoming a lot of robot.
Completely taking over in five years, no, definitely not. Certainly not in the facility I saw. But the long-term job trend will be clear in five years.