Friday, October 25, 2013

All Can Be Lost: The Great Forgetting

The first automatic pilot, dubbed a “metal airman” in a 1930 Popular Science article, consisted of two gyroscopes, one mounted horizontally, the other vertically, that were connected to a plane’s controls and powered by a wind-driven generator behind the propeller. The horizontal gyroscope kept the wings level, while the vertical one did the steering. Modern autopilot systems bear little resemblance to that rudimentary device. Controlled by onboard computers running immensely complex software, they gather information from electronic sensors and continuously adjust a plane’s attitude, speed, and bearings. Pilots today work inside what they call “glass cockpits.” The old analog dials and gauges are mostly gone. They’ve been replaced by banks of digital displays. Automation has become so sophisticated that on a typical passenger flight, a human pilot holds the controls for a grand total of just three minutes. What pilots spend a lot of time doing is monitoring screens and keying in data. They’ve become, it’s not much of an exaggeration to say, computer operators.

And that, many aviation and automation experts have concluded, is a problem. Overuse of automation erodes pilots’ expertise and dulls their reflexes, leading to what Jan Noyes, an ergonomics expert at Britain’s University of Bristol, terms “a de-skilling of the crew.” No one doubts that autopilot has contributed to improvements in flight safety over the years. It reduces pilot fatigue and provides advance warnings of problems, and it can keep a plane airborne should the crew become disabled. But the steady overall decline in plane crashes masks the recent arrival of “a spectacularly new type of accident,” says Raja Parasuraman, a psychology professor at George Mason University and a leading authority on automation. When an autopilot system fails, too many pilots, thrust abruptly into what has become a rare role, make mistakes. Rory Kay, a veteran United captain who has served as the top safety official of the Air Line Pilots Association, put the problem bluntly in a 2011 interview with the Associated Press: “We’re forgetting how to fly.” The Federal Aviation Administration has become so concerned that in January it issued a “safety alert” to airlines, urging them to get their pilots to do more manual flying. An overreliance on automation, the agency warned, could put planes and passengers at risk.

The experience of airlines should give us pause. It reveals that automation, for all its benefits, can take a toll on the performance and talents of those who rely on it. The implications go well beyond safety. Because automation alters how we act, how we learn, and what we know, it has an ethical dimension. The choices we make, or fail to make, about which tasks we hand off to machines shape our lives and the place we make for ourselves in the world. That has always been true, but in recent years, as the locus of labor-saving technology has shifted from machinery to software, automation has become ever more pervasive, even as its workings have become more hidden from us. Seeking convenience, speed, and efficiency, we rush to off-load work to computers without reflecting on what we might be sacrificing as a result.

Doctors use computers to make diagnoses and to perform surgery. Wall Street bankers use them to assemble and trade financial instruments. Architects use them to design buildings. Attorneys use them in document discovery. And it’s not only professional work that’s being computerized. Thanks to smartphones and other small, affordable computers, we depend on software to carry out many of our everyday routines. We launch apps to aid us in shopping, cooking, socializing, even raising our kids. We follow turn-by-turn GPS instructions. We seek advice from recommendation engines on what to watch, read, and listen to. We call on Google, or Siri, to answer our questions and solve our problems. More and more, at work and at leisure, we’re living our lives inside glass cockpits.

by Nicholas Carr, The Atlantic |  Read more:
Image: Kyle Bean