Don't fear superintelligent AI | Grady Booch

270,326 views ・ 2017-03-13

TED


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00:12
When I was a kid, I was the quintessential nerd.
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I think some of you were, too.
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(Laughter)
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And you, sir, who laughed the loudest, you probably still are.
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(Laughter)
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I grew up in a small town in the dusty plains of north Texas,
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the son of a sheriff who was the son of a pastor.
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Getting into trouble was not an option.
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And so I started reading calculus books for fun.
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(Laughter)
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You did, too.
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That led me to building a laser and a computer and model rockets,
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and that led me to making rocket fuel in my bedroom.
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Now, in scientific terms,
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we call this a very bad idea.
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(Laughter)
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Around that same time,
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Stanley Kubrick's "2001: A Space Odyssey" came to the theaters,
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and my life was forever changed.
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I loved everything about that movie,
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especially the HAL 9000.
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Now, HAL was a sentient computer
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designed to guide the Discovery spacecraft
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from the Earth to Jupiter.
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HAL was also a flawed character,
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for in the end he chose to value the mission over human life.
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Now, HAL was a fictional character,
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but nonetheless he speaks to our fears,
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our fears of being subjugated
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by some unfeeling, artificial intelligence
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who is indifferent to our humanity.
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I believe that such fears are unfounded.
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Indeed, we stand at a remarkable time
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in human history,
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where, driven by refusal to accept the limits of our bodies and our minds,
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we are building machines
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of exquisite, beautiful complexity and grace
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that will extend the human experience
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in ways beyond our imagining.
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After a career that led me from the Air Force Academy
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to Space Command to now,
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I became a systems engineer,
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and recently I was drawn into an engineering problem
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associated with NASA's mission to Mars.
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Now, in space flights to the Moon,
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we can rely upon mission control in Houston
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to watch over all aspects of a flight.
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However, Mars is 200 times further away,
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and as a result it takes on average 13 minutes
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for a signal to travel from the Earth to Mars.
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If there's trouble, there's not enough time.
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And so a reasonable engineering solution
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calls for us to put mission control
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inside the walls of the Orion spacecraft.
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Another fascinating idea in the mission profile
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places humanoid robots on the surface of Mars
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before the humans themselves arrive,
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first to build facilities
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and later to serve as collaborative members of the science team.
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Now, as I looked at this from an engineering perspective,
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it became very clear to me that what I needed to architect
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was a smart, collaborative,
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socially intelligent artificial intelligence.
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In other words, I needed to build something very much like a HAL
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but without the homicidal tendencies.
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(Laughter)
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Let's pause for a moment.
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Is it really possible to build an artificial intelligence like that?
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Actually, it is.
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In many ways,
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this is a hard engineering problem
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with elements of AI,
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not some wet hair ball of an AI problem that needs to be engineered.
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To paraphrase Alan Turing,
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I'm not interested in building a sentient machine.
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I'm not building a HAL.
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All I'm after is a simple brain,
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something that offers the illusion of intelligence.
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The art and the science of computing have come a long way
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since HAL was onscreen,
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and I'd imagine if his inventor Dr. Chandra were here today,
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he'd have a whole lot of questions for us.
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Is it really possible for us
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to take a system of millions upon millions of devices,
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to read in their data streams,
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to predict their failures and act in advance?
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Yes.
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Can we build systems that converse with humans in natural language?
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Yes.
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Can we build systems that recognize objects, identify emotions,
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emote themselves, play games and even read lips?
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Yes.
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Can we build a system that sets goals,
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that carries out plans against those goals and learns along the way?
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Yes.
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Can we build systems that have a theory of mind?
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This we are learning to do.
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Can we build systems that have an ethical and moral foundation?
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This we must learn how to do.
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So let's accept for a moment
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that it's possible to build such an artificial intelligence
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for this kind of mission and others.
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The next question you must ask yourself is,
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should we fear it?
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Now, every new technology
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brings with it some measure of trepidation.
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When we first saw cars,
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people lamented that we would see the destruction of the family.
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When we first saw telephones come in,
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people were worried it would destroy all civil conversation.
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At a point in time we saw the written word become pervasive,
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people thought we would lose our ability to memorize.
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These things are all true to a degree,
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but it's also the case that these technologies
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brought to us things that extended the human experience
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in some profound ways.
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So let's take this a little further.
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I do not fear the creation of an AI like this,
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because it will eventually embody some of our values.
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Consider this: building a cognitive system is fundamentally different
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than building a traditional software-intensive system of the past.
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We don't program them. We teach them.
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In order to teach a system how to recognize flowers,
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I show it thousands of flowers of the kinds I like.
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In order to teach a system how to play a game --
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Well, I would. You would, too.
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I like flowers. Come on.
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To teach a system how to play a game like Go,
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I'd have it play thousands of games of Go,
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but in the process I also teach it
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how to discern a good game from a bad game.
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If I want to create an artificially intelligent legal assistant,
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I will teach it some corpus of law
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but at the same time I am fusing with it
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the sense of mercy and justice that is part of that law.
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In scientific terms, this is what we call ground truth,
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and here's the important point:
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in producing these machines,
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we are therefore teaching them a sense of our values.
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To that end, I trust an artificial intelligence
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the same, if not more, as a human who is well-trained.
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But, you may ask,
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what about rogue agents,
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some well-funded nongovernment organization?
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I do not fear an artificial intelligence in the hand of a lone wolf.
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Clearly, we cannot protect ourselves against all random acts of violence,
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but the reality is such a system
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requires substantial training and subtle training
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far beyond the resources of an individual.
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And furthermore,
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it's far more than just injecting an internet virus to the world,
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where you push a button, all of a sudden it's in a million places
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and laptops start blowing up all over the place.
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Now, these kinds of substances are much larger,
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and we'll certainly see them coming.
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Do I fear that such an artificial intelligence
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might threaten all of humanity?
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If you look at movies such as "The Matrix," "Metropolis,"
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"The Terminator," shows such as "Westworld,"
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they all speak of this kind of fear.
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Indeed, in the book "Superintelligence" by the philosopher Nick Bostrom,
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he picks up on this theme
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and observes that a superintelligence might not only be dangerous,
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it could represent an existential threat to all of humanity.
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Dr. Bostrom's basic argument
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is that such systems will eventually
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have such an insatiable thirst for information
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that they will perhaps learn how to learn
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and eventually discover that they may have goals
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that are contrary to human needs.
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Dr. Bostrom has a number of followers.
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He is supported by people such as Elon Musk and Stephen Hawking.
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With all due respect
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to these brilliant minds,
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I believe that they are fundamentally wrong.
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Now, there are a lot of pieces of Dr. Bostrom's argument to unpack,
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and I don't have time to unpack them all,
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but very briefly, consider this:
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super knowing is very different than super doing.
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HAL was a threat to the Discovery crew
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only insofar as HAL commanded all aspects of the Discovery.
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So it would have to be with a superintelligence.
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It would have to have dominion over all of our world.
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This is the stuff of Skynet from the movie "The Terminator"
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in which we had a superintelligence
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that commanded human will,
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that directed every device that was in every corner of the world.
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Practically speaking,
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it ain't gonna happen.
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We are not building AIs that control the weather,
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that direct the tides,
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that command us capricious, chaotic humans.
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And furthermore, if such an artificial intelligence existed,
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it would have to compete with human economies,
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and thereby compete for resources with us.
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And in the end --
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don't tell Siri this --
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we can always unplug them.
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(Laughter)
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We are on an incredible journey
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of coevolution with our machines.
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The humans we are today
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are not the humans we will be then.
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To worry now about the rise of a superintelligence
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is in many ways a dangerous distraction
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because the rise of computing itself
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brings to us a number of human and societal issues
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to which we must now attend.
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How shall I best organize society
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when the need for human labor diminishes?
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How can I bring understanding and education throughout the globe
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and still respect our differences?
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How might I extend and enhance human life through cognitive healthcare?
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How might I use computing
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to help take us to the stars?
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And that's the exciting thing.
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The opportunities to use computing
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to advance the human experience
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are within our reach,
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here and now,
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and we are just beginning.
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Thank you very much.
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(Applause)
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