Monday, April 6, 2020

Robots are marvelous but are not a Panacea

Dalia Marin wrote an insightful article about the role that robots have been playing in manufacturing, and what role they'll play after the COVID-19 crisis will be over.

What Marin did, however, was look at the subject from a narrow angle. It happened to be the one that accentuated the differences between robots and human workers. As a result, she concluded that the use of robots is more efficient than humans, and will therefore replace them in manufacturing.

She believes that the trend is already here, and will continue to progress in the advanced economies where the cost of human labor is high. But she also believes it will happen to the developing economies that had the advantage of cheap labor up to now, but will lose to the robots eventually.

However, the reality is that the differences between the human worker and the robot come down to what you may characterize as skin-deep. In fact, both need nourishment to operate. The human gets his in the form of food derived from a variety of sources; the robot gets his in the form of electricity derived from a variety of sources. Another similarity is that both get sick. The human gets a medical doctor to heal him; the robot gets a technician to repair it. After a lifetime of work, both die. The human is sent to the graveyard; the robot is sent to the scrapyard.

It takes about half a million dollars to raise a human child and prepare him or her to be productive in the advanced economies. It takes about that much to build a robot and program it to be productive. It takes much less than that to raise a child in a developing country and prepare him or her to be productive. But the developing countries do not yet have the knowledge to build robots. And so, they offer cheap labor for the advanced economies to set up shop in their jurisdictions, thus make products at a lower cost.

The question is this: Will the advanced economies of today, and the developing economies of tomorrow, do away completely with human labor and replace them with robots? Before we answer this question, we need to understand what exactly is referred to when we speak of robots because a persistent misconception needs to be clarified before anything.

The robot that's of interest to us, is not what is portrayed in science fiction as a human-like specimen capable of all the things we do, except that it does them better and faster. No. A robot is not that. It is an automation device whose origin goes back at least two centuries. That would be decades before the usefulness of electricity was established and made use of.

The automation device was used to program the pattern of textile that was manufactured by machines, themselves powered by the waterwheel. When electricity was commercialized, it was used to upgrade the automation device that was then called, servomechanism. With the invention of the transistor, and later the microchip, it was possible to upgrade the servomechanism. When done, it was given the new name of solid-state system of logic.

This happened during the decade of the 1970s. A company called CBS Record, an affiliate of the news and entertainment American giant, had a plant here in Canada where I was hired at a crucial time. It is that the plant was equipped with several machines producing vinyl records. Originally, the machines were controlled by a system of logic using electro-mechanical relays. They were then converted to run with solid-state microchips. As new systems, they needed to be observed while operating and producing normally. If and when intermittent problems revealed themselves, they were debugged, and the system modified to eliminate the problem. I was part of the team that did this work.

During that time a symposium was held by one of the technology giants, featuring displays that foretold what kind of future the solid-state technology was promising to shape. There was the electric typewriter with a memory. A suggestion that anticipated the automatic teller machine. The Computer Aided Design (CAD), the Computer Aided Manufacturing (CAM), and most important of all, a CAM machine that was programmed, not by a keyboard, but by learning.

Visitors could grab the arm of the machine and manipulate it. It was equipped with a tool at its extremity. I moved the arm from place to place, and used the tool to grab a screw from a tray and tighten a panel. I turned off the machine and turned it back on. I pressed the “go” button, and the machine that learned the moves I taught it without a keyboard, repeated them in the exact same manner. This was the genesis of the robot revolution … except that they weren't called robots at the time.

In any event, it was clear then, as it should be now, that robots come in many forms. They are used not only on the shop floor but also in the offices of banks, insurance companies, and increasingly in hospitals.

Robots are here today in many forms, doing all sorts of tasks. And yet, despite the prediction that they will usher-in the leisure society, the contrary has happened. The observed reality is that the more automation is used to power an economy, the larger the workforce that's needed to fill the new jobs they create.

Yes, robots are replacing humans, but for every job they take, they create one or more new jobs. That's because they need to be made and serviced, and they open the door for industries that did not exist before.