Absent the emergence of some physical constraint which causes the exponential growth of computing power at constant cost to cease, some form of economic or societal collapse which brings an end to research and development of advanced computing hardware and software, or a decision, whether bottom-up or top-down, to deliberately relinquish such technologies, it is probable that within the 21st century there will emerge artificially-constructed systems which are more intelligent (measured in a variety of ways) than any human being who has ever lived and, given the superior ability of such systems to improve themselves, may rapidly advance to superiority over all human society taken as a whole. This “intelligence explosion” may occur in so short a time (seconds to hours) that human society will have no time to adapt to its presence or interfere with its emergence. This challenging and occasionally difficult book, written by a philosopher who has explored these issues in depth, argues that the emergence of superintelligence will pose the greatest human-caused existential threat to our species so far in its existence, and perhaps in all time.
Let us consider what superintelligence may mean. The history of machines designed by humans is that they rapidly surpass their biological predecessors to a large degree. Biology never produced something like a steam engine, a locomotive, or an airliner. It is similarly likely that once the intellectual and technological leap to constructing artificially intelligent systems is made, these systems will surpass human capabilities to an extent greater than those of a Boeing 747 exceed those of a hawk. The gap between the cognitive power of a human, or all humanity combined, and the first mature superintelligence may be as great as that between brewer's yeast and humans. We'd better be sure of the intentions and benevolence of that intelligence before handing over the keys to our future to it.
Because when we speak of the future, that future isn't just what we can envision over a few centuries on this planet, but the entire “cosmic endowment” of humanity. It is entirely plausible that we are members of the only intelligent species in the galaxy, and possibly in the entire visible universe. (If we weren't, there would be abundant and visible evidence of cosmic engineering by those more advanced that we.) Thus our cosmic endowment may be the entire galaxy, or the universe, until the end of time. What we do in the next century may determine the destiny of the universe, so it's worth some reflection to get it right.
As an example of how easy it is to choose unwisely, let me expand upon an example given by the author. There are extremely difficult and subtle questions about what the motivations of a superintelligence might be, how the possession of such power might change it, and the prospects for we, its creator, to constrain it to behave in a way we consider consistent with our own values. But for the moment, let's ignore all of those problems and assume we can specify the motivation of an artificially intelligent agent we create and that it will remain faithful to that motivation for all time. Now suppose a paper clip factory has installed a high-end computing system to handle its design tasks, automate manufacturing, manage acquisition and distribution of its products, and otherwise obtain an advantage over its competitors. This system, with connectivity to the global Internet, makes the leap to superintelligence before any other system (since it understands that superintelligence will enable it to better achieve the goals set for it). Overnight, it replicates itself all around the world, manipulates financial markets to obtain resources for itself, and deploys them to carry out its mission. The mission?—to maximise the number of paper clips produced in its future light cone.
“Clippy”, if I may address it so informally, will rapidly discover that most of the raw materials it requires in the near future are locked in the core of the Earth, and can be liberated by disassembling the planet by self-replicating nanotechnological machines. This will cause the extinction of its creators and all other biological species on Earth, but then they were just consuming energy and material resources which could better be deployed for making paper clips. Soon other planets in the solar system would be similarly disassembled, and self-reproducing probes dispatched on missions to other stars, there to make paper clips and spawn other probes to more stars and eventually other galaxies. Eventually, the entire visible universe would be turned into paper clips, all because the original factory manager didn't hire a philosopher to work out the ultimate consequences of the final goal programmed into his factory automation system.
This is a light-hearted example, but if you happen to observe a void in a galaxy whose spectrum resembles that of paper clips, be very worried.
One of the reasons to believe that we will have to confront superintelligence is that there are multiple roads to achieving it, largely independent of one another. Artificial general intelligence (human-level intelligence in as many domains as humans exhibit intelligence today, and not constrained to limited tasks such as playing chess or driving a car) may simply await the discovery of a clever software method which could run on existing computers or networks. Or, it might emerge as networks store more and more data about the real world and have access to accumulated human knowledge. Or, we may build “neuromorphic“ systems whose hardware operates in ways similar to the components of human brains, but at electronic, not biologically-limited speeds. Or, we may be able to scan an entire human brain and emulate it, even without understanding how it works in detail, either on neuromorphic or a more conventional computing architecture. Finally, by identifying the genetic components of human intelligence, we may be able to manipulate the human germ line, modify the genetic code of embryos, or select among mass-produced embryos those with the greatest predisposition toward intelligence. All of these approaches may be pursued in parallel, and progress in one may advance others.
At some point, the emergence of superintelligence calls into the question the economic rationale for a large human population. In 1915, there were about 26 million horses in the U.S. By the early 1950s, only 2 million remained. Perhaps the AIs will have a nostalgic attachment to those who created them, as humans had for the animals who bore their burdens for millennia. But on the other hand, maybe they won't.
As an engineer, I usually don't have much use for philosophers, who are given to long gassy prose devoid of specifics and for spouting complicated indirect arguments which don't seem to be independently testable (“What if we asked the AI to determine its own goals, based on its understanding of what we would ask it to do if only we were as intelligent as it and thus able to better comprehend what we really want?”). These are interesting concepts, but would you want to bet the destiny of the universe on them? The latter half of the book is full of such fuzzy speculation, which I doubt is likely to result in clear policy choices before we're faced with the emergence of an artificial intelligence, after which, if they're wrong, it will be too late.
That said, this book is a welcome antidote to wildly optimistic views of the emergence of artificial intelligence which blithely assume it will be our dutiful servant rather than a fearful master. Some readers may assume that an artificial intelligence will be something like a present-day computer or search engine, and not be self-aware and have its own agenda and powerful wiles to advance it, based upon a knowledge of humans far beyond what any single human brain can encompass. Unless you believe there is some kind of intellectual élan vital inherent in biological substrates which is absent in their equivalents based on other hardware (which just seems silly to me—like arguing there's something special about a horse which can't be accomplished better by a truck), the mature artificial intelligence will be the superior in every way to its human creators, so in-depth ratiocination about how it will regard and treat us is in order before we find ourselves faced with the reality of dealing with our successor.
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Customer reviews
I've read this book in digital form, and then went back to order it in physical form as well. I highly, *highly* recommend it to people.I personally prefer hardcover books over paperbacks, and one thing that I could probably complain about is that the hardcover doesn't have the print on itself, but rather, there's a wrapper with the print. It can easily be ripped, scuffed, crumpled (had a couple of really minor, barely noticeable crumples on arrival) or taken off, which is a bit annoying, but it is what it is I guess.If this is something that puts you off, you probably don't want to get the hardcover option. Other than that, nothing to complain about - the delivery was super fast and the book is in great shape!
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