Speech before the Los Angeles World Affairs Council on December 5, 2000:

Thomas Homer-Dixon
Author, The Ingenuity Gap
Director, Peace and Conflict Studies Program, 
University of Toronto

"The Ingenuity Gap"

Well, it’s delightful to be with you this evening and to be here in your beautiful city.  This is actually the first time I’ve really had a chance to visit Los Angeles properly.  I’ve been here a couple of times before, but I was on a tour today and it really is a marvelous place. 

I’d like to talk this evening about my new book, The Ingenuity Gap.  This is a book that, as Curtis mentioned, asks a number of key questions:  Are we creating a world that is too complex to manage?  Do the experts really know what’s going on?  I imagine some of you have an answer in the back of your mind to that question.  Are we really as smart as we think we are?  And, most fundamentally, can we solve the problems of the future?  Now the keystone concept in the argument that I’m going to make this evening is this concept of the ingenuity gap, and that’s the gap between our rising requirements for solutions to the problems we face in an evermore complex and an evermore fast-paced world and our sometimes inadequate ability to supply those solutions.  I’m arguing basically that in many areas of our lives, in our individual lives, in the lives and affairs of our national societies and in our global affairs, our problems are sometimes getting harder, far faster than we can hope to solve them. 

What are some of the problems I’m talking about?  Well, I’m discussing things like global climate change, which will affect potentially billions of people on this planet in the next decades and which will require us to create the most complex institutions, the most sophisticated institutions, known in the history of humanity if we’re going to resolve this problem effectively.  I’m talking about things like the unstable international financial system, a financial system that has trillions of dollars of hot capital sloshing around inside of it and that’s so tightly coupled, in that it’s operating so quickly, that it’s prone to flip between stable and unstable modes, as we saw with the Asian financial crisis.  I’m talking about the development of zones of anarchy in much of the developing world, in poor countries around the world, that are suffering from a convergence of a variety of problems from the diffusion of light weaponry in those societies to the problems of epidemics of tuberculosis and AIDS.  We’re finding that many of these societies are simply unraveling inside because of these converging pressures on them. 

These are problems on the global level.  I also talk about problems at the national level in our society, such as rising antibiotic resistance that we’re all familiar with.  This is actually, in some ways, a classic example of a race between our developing pathogens, the diseases that affect us, and our technical ability, our medical ability and our epidemiological ability to keep up with these new pathogens.    [We see] chronic health care crisis in many Western countries.  In this country we have forty million people who are uninsured.  Similarly in the United States and Canada, we see problems of chronic homelessness in just about all of our major cities.  These are problems; the problem of the homeless is something that our municipal, state, provincial, and federal governments seem incapable of solving. 

Another issue that I think is important within our national society are the widening gaps between the super-rich and everyone else, gaps that undermine our sense of community and that risk in time the stability, the very stability, of our societies if they continue to widen.  Now the most tangible manifestation of the ingenuity gap in our everyday lives is information overload, I believe.  I think that all of us feel that we are inundated by information.  We have too much information, too many inputs, too many things happening in our lives, too many stimuli in general, and often we feel just overwhelmed by the things that are confronting us, and we feel that there is a gap between our ability to manage information and the actual information that we are getting in our lives. 

Now, I’m going to try to put all of this in a bit of perspective by telling a story of an airplane crash that I introduce at the beginning of the book, and it’s quite a dramatic story.  Some of you probably remember this.  It’s the story of the United Flight 232, flying between Denver and Chicago on July 19, 1989.  This plane was at altitude when one of its engines blew out.  It was a DC10, and a DC10 has three engines, one on each wing and then one on the tail.  The tail engine blew out, and when that happened, the shards of the exploding engine destroyed all of the hydraulic systems within the plane.  There are three independent hydraulic systems that would normally allow the pilots in the front of the plane to steer the plane, control the rotor and the ailerons and the other flight surfaces that direct the plane though the atmosphere.  When this happened, the pilots in the front of the plane suddenly found that their controls went dead and the plane twisted into a right-hand turn and started to dive.  Within fifteen or twenty seconds they would have lost control, but at the last moment the pilot increased power to the right engine.  Remember, there are two engines-- there’s one on the right wing and one on the left wing--and he increased power to the right engine and that brought the right wing up.  So, the plane was stabilized for a time and they realized that one of the ways that they could steer the plane from then on was to use differential engine thrust, to increase power to the right engine and then the left engine alternatively and have it essentially skid through the air.  That’s the way they continued to fly the craft at that point. 

Now, it turned out that there was an additional pilot in first class, somebody who was off duty and who realized that something was wrong and he offered his services to the pilots in the front of the plane.  When he went up, the captain of the plane suggested that he take over control of the engine throttles.  They were so busy trying to deal with other things going on in the plane that he asked this new person, who is called a check airman because he was, in general, responsible for overseeing crews as they were flying around the United States.  He was off duty at the time.  The pilot asked this check airman to stand between the pilot and co-pilot with a throttle in each hand and change the engine thrust, and basically steer the plane like that.  Now, when I do this presentation I have a photograph of the flight path of United 232 that describes a series of clockwise circles across the Iowa countryside.  They were still essentially out of control, but they had developed, on the spot, a way to maintain some semblance of control over the plane. 

Eventually, they were able to land the plane at Sioux City, Iowa, and they brought the plane right down at the end of one runway.  Some of you may have seen the videotapes of this.  It hit the ground five times, broke into pieces, the cockpit broke off and tumbled across the tarmac to one side and the fuselage broke into two pieces, cart-wheeled away, and spilled into flames.  Of the 300 people on board 200 did survive and, in fact, the entire cockpit crew managed to survive; [the cockpit] was compressed to a piece of metal about six feet high. 

Now you might ask, why do I start my argument with this story, which seems like a dramatic, rather sensational story, to begin an argument about the state of the world?  Why would I possibly use this as a metaphor to describe the state of our world?  Well, there are a number of things that stuck me about this event that I thought resonated with what is happening in our world right now.  And I’ll just talk a bit about four of those things. 

The first thing that stuck me, and the reason that I was interested in this crash from the beginning, was that I came across a study of the communication within the cockpit at the time, during the forty minutes after the explosion, and I found that this study showed that these pilots within the cockpit--the pilot and the co-pilot and the check airman plus the navigator--were basically communicating at their maximum possible rate.  They were up against their peak cognitive loads.  They were facing a converging series of pressures and they had to process information at an extraordinary rate to land that plane.  They had to make countless decisions at a very high rate.  In fact, their rate of decision making and their rate of information processing was about 5 times greater than the maximum rate that a pilot would experience even in landing a plane under stressful conditions in a normal flight.  And it stuck me that this situation was a good example of the kind of situation that any of our decision makers face in the world today, especially during times of crisis when they have multiple things happening, multiple streams of information, and they constantly have to make decisions at high speed without adequate information available to them.  And they are constantly operating against their maximum cognitive capability.

The next thing that I thought was interesting is that when a plane loses control over all its flight surfaces, like the ailerons and the rotor and everything else, but it still has power, it tends to do what aeronautical engineers called a fugoid, which means that it goes through the atmosphere almost like a porpoise jumping through the waves of the water, wave of the ocean.  It goes up and down through the atmosphere.  Now the key thing about fugoid is that when you change the thrust to the engines, the plane does not respond to actually change its orientation for twenty to thirty seconds afterwards.  There is a time lag between the time you actually change the engine thrust and the actual change in the direction of the plane, the response of the plane.  Similarly, we find in our world today that there are countless time lags in the complex systems that we are dealing with, between the time we intervene in the system and the time it actually responds, perhaps in the way we want it to.  The example that we see in the world all the time, and it’s one we are confronting right now, is the time lag in the changes in central bank interest rates and subsequent changes in the output of goods and services from economies.  That time lag is usually between six and nine months, and that makes directing economies very difficult because you have to constantly think in the future and you are not sure exactly what the situation is going to be in the future, but you have to make judgments about changing the system now. 

We see exactly that issue right now with Alan Greenspan and the direction of the American economy.  A lot of people are concerned that he’s raised interest rates too much, but it was impossible to know that six or eight months ago or a year ago when he first began raising interest rates.  These time lags are characteristic of all the complex systems we are embedded in, whether we are talking about our national economies or whether we are talking about things like the global climate.  The carbon dioxide that we’re putting into the atmosphere around the planet right now won’t have an impact on the temperature of the atmosphere for up to 100 years from now.  The warming that we’re seeing now is a consequence of carbon dioxide that was put into the atmosphere many decades ago.  So, again that was something that resonated for me between this flight and the state of our world. 

Another thing that I thought was quite striking is that when these pilots were sitting in their cockpit, they didn’t know exactly which of the tools available to them were actually controlling the direction of the plane and which weren’t.  It turns out that the only thing that was controlling the direction of the plane was the differential engine thrust that the check airman was exercising with the two throttles.  However, because they didn’t know that was the only thing, they continued to work the wheels and the columns in the cockpit.  The pilot and the co-pilot still continued to work all of the instruments and controls available to them because they thought that they might have some residual control over the plane that way.  And similarly in our world today, because we don’t understand the systems we operate in very well, we often have to do everything to try to control them.  We feel we don’t know exactly what works and what doesn’t work and so ultimately the load that our decision makers face is much greater because they have to try to do everything rather than just doing the things that really do work because we don’t know exactly what works.

Now the final thing that I felt was particularly important about this case was the role of experts, and I referred to that a little bit before.  As soon as the explosion occurred the pilots in the plane radioed to the ground and said, “Get us systems aircraft maintenance-- get us SAM.”  These are the people within United Airlines that provide advice to pilots in a time of crisis like this.  And so a number of SAM engineers gathered around a speakerphone in Chicago and started talking to the pilots up in the plane, to the navigator in particular.  The first thing that happened was that they got a run-down of the state of the plane.  But the people on the ground, the engineers on the ground, these SAM engineers, couldn’t believe that they’d lost all three hydraulic systems.  In fact, they’d never heard of such an accident before.  The point of having three hydraulic systems, independent systems, was that if you lost one you still have two more and in the unlikely event that you lost two, you’d still have one left.  But here they’d lost all three and they talked about this for a while and then there was radio silence, and twenty minutes into the flight after the explosion they radioed, “Can you just confirm that you have all three hydraulic systems down?”  The navigator said, “Affirmative, affirmative, affirmative,” and then he just basically told them to go away because they were useless.  Well, I think that we can see the parallel.  In times of crisis, the people that we anoint as experts are frequently inadequate to the situations they are confronting.  They don’t really seem to know what’s going on and they don’t really seem to be able to answer the key questions that we have and tell us what to do. 

I felt that this incident was revealing--that it was a metaphor.  But you might still wonder whether it is legitimate to say that we are spiraling across, in a sense, the Iowa countryside as we progress into the future.  Are we really that much out of control?  Well, I would argue, going back to some of those problems I discussed before, that there are a whole variety of challenges that we aren’t confronting effectively in this world.  That there are time lags that we can’t deal with effectively and that in many cases our experts are inadequate to the challenges that they face.  I want to say a little bit though about where this idea comes from, where I thought this up originally, why I decided to focus on the flow of ingenuity and then I am going to talk more specifically about what I mean by ingenuity. 

As Curtis mentioned, I have been working with a number of colleagues for many years on the relationship between environmental and stress violence in developing countries.  These are things like water scarcity and land scarcity contributing to revolution, rebellion, and civil war in developing countries.  We’ve been looking at cases like the Philippines, like Rwanda, at South Africa, at Pakistan, and Chiapas in Mexico.  We have accumulated a lot of information about relationships, linkages between environmental stress and violence in these places.  But one thing that we realized early on is that some societies adjust reasonably well to scarcities of water and crops, land and fuel, wood and forest supplies, where as other societies don’t adjust very well at all.  And those societies that don’t adjust, that don’t adapt, often suffer from social break-down and sometimes violence.  So the critical question right at the beginning of our research was, why do some societies adjust well and some don’t?  That was the starting point for the development of the rudimentary theory of ingenuity that I’m going to talk about today.  I wanted to understand why societies, or how societies, adapt to the complex stresses they face.

Now, after working on this for a number of years and I’m sure all of you have had this experience at one point or another, when you’re monomaniacal about something for long enough you start to see it everywhere--and I started to see ingenuity gaps everywhere in my life.  I had this hubris, I guess you might say, that I could take this idea and I could apply it to the world more generally, beyond poor countries and beyond environmental problems, and that’s what I tried to do in this book.  I had this intuition that there were relationships and common forces operating between the things that we see in our daily lives all the way to things and events we see at the global level.  So again, those are problems I talked about and challenges I talked about before, such as information overload in our daily lives.  I’m suggesting that the rising apparent complexity and pace of our daily lives, the causes of that rising complexity and pace, are the same causes that are driving things like the instability of the international financial system, that there are linkages among these various phenomena once you start to look at them in the right way.  Now that’s a fairly bold claim.  I’m going to talk for a few minutes about what I think those common forces are back behind the scenes, so to speak, leading to all of these different challenges that I’m suggesting in our daily lives, in the lives and affairs of our societies and in the affairs of our global society as a whole.

What do I mean by ingenuity?  I’m talking about the rising requirement for ingenuity and our sometimes limited ability to supply ingenuity.  But what do I really mean by ingenuity?  I define it as ideas that we apply to our practical, social and technical problems, or the sets of instructions that we use to tell us how to arrange the physical and social constituents of our world in ways that help us meet our goals.  So they are basically like recipes.  Ingenuity consists of recipes for how we can arrange our physical world and our social world.  Now, I’d critically distinguish between two types of ingenuity – technical ingenuity and social ingenuity.  Technical ingenuity is ideas for technologies, ideas that help us meet our physical needs for health, for transport, for shelter, for entertainment and the like, but just as important, in fact I believe probably more important ultimately, is what I call social ingenuity.  These are ideas for how we arrange our societies, how we arrange the institutions that allow us to prosper together as a community.  These are ideas for effective markets, good governments, for judicial systems that work well, and the like. Now, social ingenuity, I think, is more important than technical ingenuity because you don’t get the flow of the right kinds of technologies unless you get your institutions working right.  And particularly you’ve got to get your markets working right; you have to give people the right price signals, your technological entrepreneurs the right price signals, if they’re going to take the risks in developing technologies.  So you need to get your markets and your social institutions before you actually get the technologies that you want.  Social ingenuity is a precursor, in other words, for technological ingenuity. 

The next thing I do is distinguish between the requirement for ingenuity and the supply of ingenuity.  I’m suggesting that as our world becomes more complex, the requirement for ingenuity rises – the requirement for the sets of instructions rises.  We need more, in a sense, sets of instructions, more sophisticated sets of instructions to deal with the problems that we face.  On the supply side we need to distinguish between two things: the generation of ideas, whether it be in a laboratory or corporation, or in government bureaucracy, research think tank, or at the community level when people are dealing with their local problems, and the implementation and delivery of those ideas.  And that’s where the problem usually arises.  It turns out we usually have lots of fairly good ideas to solve our problems around but we don’t implement and deliver a lot of the good ones, especially because there are narrowly vested interests, special interests, that can block the delivery of solutions to our problems.  That’s something I focus on at some length in the book. 

  Now all of that is sort of by way of background, just some of the basic concepts that I introduce here.  The next thing that I do is basically structure my argument around some key questions.  The first is very straightforward.  Is our requirement for ingenuity rising in this world that we are living in today?  I argue that it is, because of three factors in particular: larger and denser human populations, higher resource consumption and waste production per person in those populations, and better technologies and more widely available technologies for the movement of people, materials, energy, and especially information.  Now, these better technologies essentially make us all individually more powerful than we used to be.  That’s potentially a very good thing but when you take these three things together--larger and denser populations, more consumption of resources per capita, more waste output per capita and better technologies for the movement of people, information, energy and materials--you produce a much more complex world.  Basically you increase the density, intensity and pace of our interactions with each other and with our natural environment.  You’ve got more people, more connections among them, and we’re pushing more stuff in the form of information, energy and materials along those connections than ever before.  That means that we need to manage such a complex system, more sophisticated ideas, more sets of instructions and better sets of instructions to manage such a complex system. 

  The other thing that happens when you have larger populations, all consuming more resources and producing more waste, is that you increase our burden on the natural environment.  Between 1900 and the year 2000 we have multiplied our population fourfold on the planet, from 1.5 to 6 billion people, and in the same period of time we have multiplied our waste output and resource consumption per person fourfold.  So within that 100-year period we increased our impact on the global environment about sixteen-fold.  Well, multiply it another three times in the next fifty years.  Within two human life times, between 1900 and 2050 we’ll increase our impact on the global environment around fifty-fold.  Never before have we ever seen that kind of thing happen on this planet.  Human beings are now starting to perturb the fundamental dynamics of the global ecosystem.  We’re changing the fundamental flows of basics elements such as carbon, sulfur and nitrogen.  We’re moving material and energy on the surface of the planet at scales that rival those of nature.  And that means that we are starting to change the basic dynamics and how many of the complex systems, ecological and environmental systems on the planet work, such as the global climate.  That means we need more sophisticated institutions and ideas for dealing with the problems that we’re creating in the global environment. 

  In this environment we must generally make more and better decisions in less time than ever before.  And the management of our relationship with this new world, this hyper- complex, urgent and often entirely unpredictable world that we live within, requires immense and ever-increasing amounts of ingenuity, social and technical ingenuity. 

  So that’s roughly the argument that I’m making for ingenuity requirement.  What about ingenuity supply?  Can we supply the ideas and sets of instructions that we need in response to the problems that we’re creating for ourselves?  In many cases we can.  This is not an apocalyptic argument.  I’m not suggesting that we’re always falling behind, but I think there are a number of factors that limit our supply of ingenuity in certain circumstances.  I talk about half a dozen or so within the book.  I start at ground zero; I talk about the human brain.  This is the engine of ingenuity; it’s the engine of our creativity.  What is the nature of the human brain?  How did it evolve?  What are its characteristics, and are those characteristics suitable for the kinds of problems that we’re confronting in the world today?  Well, I look at the evolution of the humanoid brain going back three million years, drawing on the latest research from evolutionary psychology, and in the end I came to the conclusion that while this is an extraordinary instrument we have up here, just phenomenal in its power, its creativity and its ability to meet the challenges it faces, it does have certain characteristics that are maladapted for the challenges that we face today. 

  I also talk about the nature of our economies.  Are our markets good at producing solutions to the problems that we have?  The critical thing we have to adhere to is what economists call “get the prices right.”  We have to make sure that the price signals within the economies that we have are price signals that really reflect our needs as societies so that we get the right kind of ingenuity and response.  Unfortunately, in many cases we have what economists call “market failures” and our prices don’t accurately reflect our needs.  Probably some of the best examples are again dealing with the area of environmental resources where, for instance, we often under-price water and so we don’t conserve it effectively and we don’t develop all the conservation technologies that we should have to conserve the water resources we have.

  I talk about the nature of science and whether we can rely on science and technology to come to the rescue when challenges and crisis confront us.  I suggest that while we often can, there are a number of reasons why science and technology are not always available when and where we want them.  A lot of problems in the world are just very hard to solve.  Now I think that over the last decade or two, especially the last decade, because of the really dramatic advances we’ve seen in communication and information technology, we’ve come to the conclusion that if we just apply scientific knowledge and technical expertise in any particular area we can make equivalently quick advances in any area that we decide to focus on.  And it’s simply not true. 

  There are countless problems that we face in the world that we’ve tried to address and invested huge resources in addressing using science and technology and we haven’t made significant advances.  A couple of quick examples: fusion power was supposed to be the ultimate source of energy back in the 1950s.  At that time it was thought that commercial fusion reactors would be available by the year 2000, about 40 or 50 years hence.  There was no question that it would be possible by then.  Here in the year 2000 we’re still talking about 40 or 50 years from now.  Something a little bit more direct to home to all of us in our lives is the problem with cancer.  This is something that we all desperately want to address and solve as a medical problem that we face.  We’ve invested 30 to 40 billion dollars in the war against cancer since Nixon declared it in the early 1970s, with disappointingly little progress towards a cure.  Cancer and fusion power and a host of other things turned out to be just very difficult problems to solve.  We have to be careful in our assumption that science and technology will always come to the rescue when we confront major challenges in the future because sometimes those challenges may be impossible to solve or very difficult to solve. 

  The final issue that I talk about, when I’m talking about the supply of ingenuity, is the nature of our political processes.  Can we rely upon democracy, in particular, to provide collective solutions to our problems?  I suggest that sometimes we can’t.  And I look in particular at the role of communication technologies and effective information technologies on our democracies.  Now, the assumption has generally been that things like the Internet and e-mail are good for democratic processes.  That if we allow people to communicate more through the Internet and have access to more information through the web that our democracies will generally improve.  Unfortunately, it’s a mixed story, it’s a much more mixed story than that suggests. 

  These technologies, as I mentioned before, increase the power of individuals and subgroups, and sometimes those groups don’t have the best interest of our societies at heart.  What happens is that they can increase the problem of gridlock within our societies.  You see this widely in the United States, you find that narrow coalitions and vested interests will use blast faxing and blast e-mailing and scientific polling techniques to mobilize supporters and inundate politicians with opposition or support for a particular policy.  When you get lots of groups doing this simultaneously, you just create a logjam in the political process.  We see that around campaign finance reform in the United States.  We see it around health care reform and around global warming legislation.  So, there are reasons to believe that the shift of technological power from large organizations and institutions to individuals and small groups can actually make the process of governments harder. 

  The extreme form of this process is the shift of lethal power in the developing world.  One of the key technological trends over the last decades has been the increasing lethality, the portability, the lower cost, the increased ruggedness of weapons.  Light, lethal weapons are diffusing very rapidly in the developing world and in situations where you already have weak governments and conflicts underneath the surface of those societies, whether we’re talking about Columbia, or Pakistan or Sri Lanka or wherever.  It’s just that when you add these weapons on top it’s like pouring salt on a open wound. It’s almost impossible to develop the political and social stability that allows you to solve problems within those societies effectively, to have stable markets, stable governments, stable court systems, etc. 

  Now, in the book I go to Sri Lanka and I investigate the Tamil Tigers, the Liberation Tigers of Tamil Eelam, who are trying to carve out a separate state for Tamils in northern Sri Lanka.  Now, the Tamil Tigers were the first to introduce rocket-propelled grenades into combat in Sri Lanka, the first to use night vision goggles.  They used global positioning systems to target their weapons.  They used satellite telephones to communicate with their cadres in the field.  They used satellite communication systems to hook up with their fleet of high seas’ freighters that brings weapons from around the world.  They used the Internet to coordinate their protection racket that extorts millions of dollars a year from the Tamil diaspora around the world, including a million dollars a month from Toronto alone.  And they used the web as a propaganda device, a very effective propaganda device around the world.  This organization is a good example of the kind of transnational high tech terrorist organization we’re going to see in the future and it has brought the Sri Lankan government to its knees.  Whether you like the Sri Lankan government or not, or whether you think the Tamils are justified or not, is an independent question.  This transfer of lethal power to small groups threatens fundamental reforms in the developing world and is making the challenge of delivering social ingenuity, institutional reforms, far greater. 

  The final question that I ask, is what does this mean for the future? If we are confronting problems that we are having difficulty solving, if in some cases the requirement for ingenuity is rising faster than the supply, what does this mean for our future?  I suggest that it means that gaps between rich and poor, between powerful and weak, will widen within our societies and among our societies.  Some people in some groups turn out to be very adaptive.  They’re nimble. They’re smart. They’ve got analytic competence. They’ve got wealth and they can adapt to the rapidly changing world that they’re in.  Other groups in societies and other individuals can’t, and they fall behind, progressively behind. 

  We’re literally seeing some parts of the world fall off the map. Sub-Saharan Africa is like that now.  And I’m concerned that that problem is going to worsen and the problem is that these different worlds will not live ultimately independently of each other.  They will not stay isolated from each other.  Because at the same time as we’re increasing these differentials between rich and poor and powerful and weak, we’re also diffusing the capacity into those poor, disadvantaged groups, the capacity to attack the targets of their anger.  This knowledge, the light and lethal weapons I talked about before, but also the knowledge to create weapons of bio-terrorism and chemical terrorism that can be used against groups that are more privileged around the world [is being disseminated].  So this is a real concern for us to the extent that we leave some of humanity behind and some of our fellow human beings behind, that’s a threat to all of us.

  That’s the argument of the book very quickly.  I do some other things in it though that I think are interesting.  I tell stories.  I travel.  I have a travel log within the book where I go from Toronto and literally around the world in search of answers to questions I have about ingenuity, in search of pieces for my ingenuity puzzle.  In England and New York I talk to experts on the global environment, on the biosphere.  In Washington D.C. I meet senior policy makers and I’m confronted by the reality that many of these people, although well-meaning and very smart, really don’t understand the systems that they’re operating within.  I go to Las Vegas, of all places.  I’m interested in Las Vegas because it’s a bubble of illusion, in a sense, that is maintained by a belt of ingenuity, a shield of ingenuity around it and it’s suspended in and extraordinarily hostile physical environment, in a desert.  So I studied that illusionary world within Las Vegas, and then I discussed the people and I talked to the people who are responsible, for instance, for supplying water to Las Vegas and [who] maintain this unbelievable illusion in the middle of a hostile environment.  And then I go to Sri Lanka and I go to India, in part to study the LTTE [Tamil Tigers]. 

  The book is bound together also by a series of metaphors.  Some of them I’ve mentioned this evening, for instance, the metaphor of flight.  But one metaphor that is particularly important is the metaphor of faces, in particular our ability to recognize faces.  Human beings have this extraordinary ability to pick one face out from a crowd.  It’s something that we’ve evolved over the millions of years in the evolution of our brain and it’s quite a remarkable feat.  This ability to identify a single face or identify faces, to recognize faces, is for me a metaphor for our ability to create linkages among ourselves and create community out of a sea of indistinguishable humanity, basically, to create links of empathy with people around the world.  Now I go to the other side of the planet, actually, to find one person, to find one face.  At the beginning of the book when I’m trying to solve my ingenuity puzzle and I’m sitting on the floor of my office with papers and clippings and magazine articles and books strewn all around me, I have a photograph on the wall of my office.  It’s a poster-size photograph of a little girl that I took a number of years before in Patna, which is a city in eastern India, a very poor part of India in the state of Bihar.  It’s a haunting photograph.  The expression on the girl’s face is quite enigmatic and haunting, and I realized after a while that she’s watching me.  That as I’m trying to figure out this puzzle she’s watching me.  And I decided, I had this intuition, that she had some of the answers to some of the questions that I have.  That she holds some of the pieces to the puzzle.  That even in the process of trying to find her, I could maybe find some of the pieces to that puzzle.  So I decide to go back to India to find her. 

  At the end of the book, after I have traveled around the world and I’ve talked to countless experts and made an elaborate argument, I end up back in India.  I arrive in the middle of the worst heat wave that India has ever experienced, with temperatures of 125 degrees, and the situation in Patna is absolutely appalling.  But I do find her and I recognize her face the moment I see her. 

  I’d just like to return to this idea that recognizing faces is very important.  I’m not going to tell you how the pieces of the puzzle come together at that point, for that I’m afraid you’re going to have to read the end of the book, which is available here this evening.  I promise I won’t say that again.  But the idea of using our capacity to see people as human beings, to extend our sense of humanity, the scope of our humanity, I think is very important.  We aren’t going to be able to address a lot of problems that we face globally unless we can extend the boundaries of our sense of humanity, create, in the sense, a global we.  As somebody very wise told me one time, the measure of moral development of our civilization is gauged by the breadth of our sense of community.  I think that that’s a profoundly important idea and recognizing faces, remembering ultimately we’re dealing with human beings on the other side of the planet despite the fact that they may live in a world that is entirely different from our own, is fundamentally important.

  Thank you, and I’d be very interested in your comments and questions.