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Computers more intelligent than humans? Self-replicating molecular robots? Virtual immortality? These may sound like science fiction, but some reputable computer scientists are predicting they will happen within the next several decades. What will our world be like if and when our machines surpass us in intelligence? Do the advances in biotechnology, robotics, and nanotechnology, which make intelligent machines possible, pose dangers of their own? Should we embrace such a future or try to stop it?
Guests:
Bill Joy Chief Scientist, Sun Microsystems
Ray Kurzweil Author, The Age of Spiritual Machines; Founder and CEO, Kurzweil Technologies
Transcript:
Peter Robinson: Today on Uncommon Knowledge: if you think your computer
makes you feel stupid now, just wait!
Announcer: Funding for this program is provided by the John M. Olin
Foundation and the Starr Foundation.
[Music]
Peter Robinson: Welcome to Uncommon Knowledge. I'm Peter Robinson. Our
show today: technology and the future of humankind.
Computers that are much smarter than we are, robots capable of
self-replication, virtual immortality. All of that may sound like
science fiction but it's exactly what reputable computer scientists
are predicting and not for the distant future but for just a few
decades from today.
When our machines are smarter and more adaptable than we are
ourselves, where will that leave us?
Joining us today, two guests. Bill Joy is Chief Scientist and Co-founder of Sun Microsystems. Ray Kurzweil is an award winning
inventor and author of the bestselling book, The Age of Spiritual
Machines.
Title: Future Shock
Peter Robinson: A statement by a moderator, the moderator of panel at which you
both spoke recently, I'm quoting him, "Today's human research is
drawing on emerging research in areas such as artificial life,
artificial intelligence, nanotechnology, virtual reality and on and on
and on, are striving perhaps unwittingly to render themselves
obsolete." So let's establish right at the beginning, do you really
believe, do you really wish to contend that in the course of this
century, human beings will become, in some sense, obsolete?
Bill Joy: It may be an unwitting consequence, certainly not the direct intent
of most of the people working in the field.
Peter Robinson: But that doesn't strike you as an outlandish statement at all?
Bill Joy: There's enough credibility to it that we ought to think about it.
Peter Robinson: Ray?
Ray Kurzweil: Without putting too fine a point on it, depends on what you mean by
human. I think human…
Peter Robinson: You've already got me concerned.
Ray Kurzweil: Human beings will change and we're in the early stages of already
putting computers certainly in our clothing, in our pockets. Some
people have them in their brains. The deaf friend who has a
cochlear implant, was profoundly deaf, he's getting a new model
now that has a thousand points of frequency so he'll actually be able
to hear music for the first time. There are people with Parkinson's
Disease that actually have these small corpus of biological neurons
that are destroyed by that disease, replaced the functionality of those
cells replaced by a neural implant. There are dozens of different
implants primarily for people with profound disabilities and medical
issues. But in the decades ahead, we'll be putting them in our
bodies and brains for other reasons, to enhance our normal
functionality and we'll be able to do it without surgery. We'll
introduce them by sending tiny little intelligent robots, which I call
anabots in through our bloodstream. But we'll be changing--we'll
be merging with our technology. And an important point is that the
non-biological portion of our intelligence is growing exponentially.
Our biological intelligence isn't growing. It's…
Peter Robinson: Brains are brains.
Ray Kurzweil: It's fixed and it's a pretty fixed architecture. It has a certain amount
of plasticity but we'll be able to expand our experiences and
ultimately our intelligence through this intimate merger. So we'll
change the nature of what it is to be human but in--the positive side
of it is we can make ourselves more human.
Peter Robinson: You published The Age of Spiritual Machines in 1999, predicting
what you've just said. Bill you wrote a ten-thousand word article in
Wired Magazine that appeared in the year 2000, meditating on and
expanding on some of Ray's predictions and saying that there's
plenty in what's to come for humans to be worried about. Your
book became a big bestseller. Your article produced an enormous
number of emails, letters, news reports, huge response to both of
those. Were you surprised by the response that those--that your
book and your article received?
Bill Joy: Yeah, I was surprised by the length of the response in particular and
the depth of the response and I think it touched a chord in people
that people realized that things are happening that are challenging
our ethical standard. There's many things that we can do, imagine
doing, people propose to do that we find troubling in some way and
also exciting at the same time.
Peter Robinson: Ray Kurzweil's book sparked the outcry that we've been
discussing, so let's take a closer look at his argument.
Title: Ghost in the Machine
Peter Robinson: Ray, your book, The Age of Spiritual Machines, rests on a quite
specific premise. You call it the Law of Accelerating Returns.
Now a lot of people are familiar with Moore's Law which holds, I'll
let you state it…
Ray Kurzweil: Well, Moore's Law is a specific paradigm for improving
computational power. We're shrinking transistors by fifty percent
every two years. We can put twice as many on a chip. They run
twice as fast. It's a quadrupling of computer power. The Law of
Accelerating Returns broadened that first of all in terms of
computers. Moore's Law was just one way of improving
computational power. The next paradigm will be going into the
third dimension. But moreover, this type of exponential growth is a
function of all information-based technologies.
Peter Robinson: That's an arresting point to me because I, as a layman, had
understood that everybody was expecting perhaps sometime in this
decade that Moore's Law would begin to bump up against physical
limits. Once you etch circuits molecule or an atom apart, you just
can't cram anymore in. But you're saying no, we'll transcend it
somehow.
Ray Kurzweil: That's the key point. I mean each paradigm comes to an end. They
were shrinking vacuum tubes; they couldn't make them any smaller
and keep the vacuum. Well then a whole different approach came,
transistors, which are not just small vacuum tubes. And we will get
to the point where the key features are a few atoms in width. We
won't be able to shrink transistors on a integrated circuits. But
integrated circuits are flat. We live in a three-dimensional world.
We might as well use the third dimension. Our brains are organized
in three dimensions.
Peter Robinson: Okay, you write, I'm quoting from your book, "It is now 2009, a
one thousand dollar computer can perform about a trillion
calculations per second. It is now 2019, a one thousand dollar
computing device is now approximately equal to the computational
ability of the human brain. It is now 2029," I'm continuing to quote
you, "a one thousand dollar unit of computation has the computing
capacity of approximately one thousand human brains. There is a
growing discussion about the legal rights of computers, machines
claim to be conscious and these claims are largely accepted." Is
consciousness merely a product or artifact of computational ability?
Ray Kurzweil: Well not at all. The power of the computer to match the
computational ability of the brain is the hardware side. There's also
the software side, understanding the methods of operation,
otherwise we'll just have very fast computation of our spreadsheets.
The primary source of that is understanding how the human brain
works. And there's a grand project underway, which we've made
more progress on than people realize, of reverse engineering,
understanding the principles of the operation of the human brain.
And there's many different approaches to that. We're modeling the
hundreds of different types of neurons. We have very detailed
mathematical models. We're actually scanning the human brain
seeing the wiring of the interconnections and there's actually been a
couple dozen of the several hundred regions of the brain that have
been reverse engineered in some detail and re-implemented. So
we're under--there's other sources of the software intelligence as
well, just our experimentation of artificial intelligence but one
major source is going to be understanding what goes on in the
human brain and then being able to replicate that.
Peter Robinson: Here's what I find provocative about the book and what I'd like to
press you on a little bit, the notion here--you say machines will
claim to be conscious and these claims will be accepted. And so the
question I have is do you draw any--is there any sharp or distinct
line between humans? Is there something distinctively human about
us that machines can never have or is that all a blur, a continuum?
Ray Kurzweil: Well I didn't really answer that question. I think it's a deeper
philosophical issue as to what is consciousness. We accept that
each other are conscious but it becomes controversial when we go
outside of human experience. There's a controversy about animals.
And we will have a controversy about machines. But my point is,
you could--I mean, twenty-eight years from now you could have
someone on your program and they'll have a visual appearance and
they'll convince you that they're human, at least they'll seem that
way. But some philosophers will say no, they're not squirting
human neurotransmitters, therefore they can't be conscious. I don't
think there really is a scientific test, a machine you could slide it
into the in and a green light will go on saying, this is conscious, that
doesn't have some philosophical assumptions with it.
Peter Robinson: Trying to define consciousness and humanity itself, talk about
challenging philosophical questions. Where do Bill and Ray stand
on those?
Title: I Am Somebody
Peter Robinson: Pope John Paul II--I want to read this and see what you guys think
of it--"If the human body takes its origin from preexistent living
matter, the spiritual soul is immediately created by God
consequently, theories which consider the mind as emerging from
the forces of matter or as a mere epiphenomenon of matter are
incompatible with the truth about man." So there you have a stark
philosophical statement that there is a spiritual component which is
separate from the mere matter. Do you buy it? Does that strike you
as persuasive?
Bill Joy: Well I see a strong spirituality in my children that I don't think I
have impressed on them. I think it arises naturally and certainly,
you know, our spirituality can come from our historicity, you know.
And I would note that machines are unlikely to be much like us,
intelligent machines. They're not likely to have…
Peter Robinson: Even in the year 2029, even far out, relatively far out?
Bill Joy: Well they're not likely to have a sexual nature. I mean, they can
reproduce asexually or in some other way. I'm not clear that they
necessarily have an individual mind. There's no reason they can't
share things with a LAN and I also think that they can also share
experience in what you'd call Lamarckian as opposed to sort of a
Darwinian way. So the natural…
Peter Robinson: Hold on. You've got to explain that for this layman.
Bill Joy: Well you normally don't expect that things that you learn in your
lifetime will be passed to your children the way gene transmission
works. You transmit, you know, there's this indirect way of
evolution through selection but not a sharing or passing of
experience or acquire…
[Talking at same time]
Peter Robinson: They acquire or learn for themselves as we say about our kids.
Right?
Bill Joy: Right. So culture is a mechanism of transmission but not--you
don't essentially directly pass experience. So if you know French,
your son or daughter still has to learn it, you know, directly but that
wouldn't be true of machines. So I think machines--the natural life
form in a robotic or machine substrate is likely to be, you know,
more different from us than ants or wasps or different from us. And
so I think it's a bit romanticizing--if we could actually create the
computational power to create a race of intelligent or a species of
intelligent machines. I don't think we would be--we're not the
natural life form, our emotional, spiritual, sexual, individual nature
is not the natural life form in that environment. And so we
wouldn't necessarily survive there for long even if we could be
transplanted into that space.
Peter Robinson: He's making me feel better. Your book creates a tremendous
anxiety on the part of the reader for some clear line which as you've
said, you don't draw, between us and them, between the machines
and us.
Ray Kurzweil: I mean, the question comes up, will these future machines be very
humanlike or will they be very alien? And the answer is both.
We'll have alien forms of intelligence that are not at all human
because they don't need to be but we will also have machines that
are very much human like, if for no other reason than to
communicate with us humans because we like to communicate in a
humanlike way. And we will have machines that act human. And
moreover we will be enhancing our own biological intelligence
through intimate connection with machine intelligence. I see that
actually as a primary application. We'll be able to, for example,
shut down our signals coming from our real senses, replace them
with the signals coming from a virtual environment and…
Peter Robinson: If the prospect of intelligent machines is several decades into our
future, the technology that will create them will also bring us other
more immediate concerns.
Title: Deadly Information
Peter Robinson: You write that the NBC weapons--nuclear, biological and chemical
weapons--that proved the cause of so much concern during the
twentieth century will be largely displaced in the twenty-first by the
GNR technologies--genetics, nanotechnology and robotics--as a
matter of concern.
Bill Joy: I'm not saying that the nuclear, biological and chemical weapons
aren't going to be a continuing concern. In fact, we see concern
today.
Peter Robinson: Sure.
Bill Joy: But biological--what I'm talking about is things that occur in the
natural world and things that are made with non-information based
techniques. So like the Russian bioweapons program largely would
just take a disease and hit it with--they'd hit it with an antibiotic,
grow it in an antibiotic and try to find an antibiotic resistant version
of it. With genetics, you can do things with a much deeper
understanding of what's going on. You have a gene sequence, you
can use some information model of how the genes work or what the
genes do and start cutting and pasting things together. And this has
been used quite successfully to do a number of amazing things
already. So that whole field of genetic engineering and the related
sciences are going to bring us enormous benefit. So there's many
genetically based diseases we hope to come up with cures for, for
example. Nanotechnology is basically nanos--you know, a
billionth--it's basically anything done at kind of the atomic scale.
But you can think of--what the human body has is it has machinery
for taking information at this kind of atomic scale and for
manufacturing things using the ribosome. I mean, it has a
molecular machinery for making certain things at that scale. Now it
doesn't make them out of an arbitrary set of elements. It makes
them out of organic building blocks.
Peter Robinson: Right.
Bill Joy: What nanotechnology really is--a simple way to think about it is
you use the entire periodic table. You can manufacture anything at
that scale, not just a particular subset of things that the biological
world tends to manufacture. And then the robotics is what we've
been talking about. These three fields would only--can only exist
with information technology.
Peter Robinson: We understand that there are all kinds of good things that can come
from these technologies but that piece that you wrote in Wired was
a kind of warning, was an alarm system going off. And what is it
that you want to warn against?
Bill Joy: Well the difficulty is that these three fields, because the designs are
basically information, so a genetic design for a modified smallpox
would be more like a computer file. It's not a vial containing some
substance. And it's just--it can just be information that you could
then put back into physical form using some machine. And so you
can view that that information is then as dangerous as the physical
substance. But our society, we haven't figured out how to
collectively control information. And so we see biologists putting
the gene sequence of pathogens up on the web. But those are
equally as dangerous as the vials of the material that we would…
[Talking at same time]
Peter Robinson: So ten or fifteen years from now a Saddam Hussein with what
would then be a standard sort of PC, could do a lot of damage?
Bill Joy: Certainly there's some people today that can probably do such
damage. It's still the case that a lot of the machinery to do this and
the knowledge of how to do this is relatively limited. And not
everybody in the world knows this but it's--the knowledge and the
ability to do this is also expanding at a very rapid pace.
Peter Robinson: So far here at this table, we've talked about what a bad human being
could do with some of these information technologies but there's a
lot in your article about what the information technologies could
begin to do, so to speak, on their own. Am I reading that correctly
or is this just a layman's free-floating anxiety?
Ray Kurzweil: What Bill was talking about that all these technologies are self-replicating.
Peter Robinson: Right.
Ray Kurzweil: Certainly pathogens, whether the virus is bacteria or cancer cells, do
their damage by self-replication. The same specter exists in the
nanotechnology field where you could have non-biological cancers,
for example. The question is what to do about it and the dilemma is
that the technologies that are beneficial are the same ones that are
harmful. I think that's the problem because otherwise, you could
say well, let's keep the good things and let's just relinquish the bad.
Peter Robinson: All right, I'm convinced of the dangers of these technologies but
what should be done about it?
Title: Don't Go There
Peter Robinson: You've got a lot of people lathered up by your notion of
relinquishment. Can you explain what you meant by that?
Bill Joy: Well what I said more precisely is we should relinquish the stuff
that we consider too dangerous.
Peter Robinson: Okay, and that would be…
Bill Joy: And, first of all, I didn't say, for example, relinquish
nanotechnology. I said we should relinquish the stuff that we judge
to be too dangerous. And the "we" in that case would be hopefully
the set of people who are doing the work, because I don't think
anyone else is capable necessarily from the outside, which means,
for example, the biologists and the nanotechnologists taking
responsibility. But you have to take responsibility in a non-naïve
way. I think we were all very, very naïve about these things say,
you know, kind of 9/10 kind of thinking was that no one would use
biological weapons. That was the standard answer to this is that
people just--it wasn't thinkable. An army would never do it
because it might turn around and hit themselves. Well that's, you
know, a kind of failure of imagination because there are people who
would use it who aren't armies. You know, like crazy people. And
so to go along…
Peter Robinson: So Osama Bin Laden although he used old-fashioned technology,
airplanes and jet fuel, in fact, gave great impetus to your argument
and to your concerns?
Bill Joy: Well we don't know who the person who did the anthrax letters is…
Peter Robinson: Right.
Bill Joy: …but, in fact, they're of much more concern, I think, than Osama
bin Laden. Osama bin Laden is an outlier because he has lots of
money and he had a state base to do it from. The
single--potentially single actor who did the anthrax letters is
probably much more like the thing in the future that we're going to
face because, you know, it's someone coming out of nowhere, we
have no intelligence about and it's very difficult to catch.
Peter Robinson: But now relinquish--you've got to explain this to me a little bit
more because you say to me, sitting here in Silicon Valley, the
people who are doing the technical work will be the ones who
themselves decide to relinquish it. And I look up and down this
valley and there was a lot of money made during the boom and no
doubt as the economy corrects itself, there will have been--in other
words, the financial incentives to pursue every possibility are
enormous. And so are you hoping to create not only good
technologists but saints. I don't--I mean, as a practical matter, how
would you expect your regime to work, Bill?
Bill Joy: First of all, if "work" is defined as eliminate all risks then it's never
going to work because we--what we can do is hope to bring risk
and reward into a better balance. Somebody who's using a new
technology in a way that has a catastrophic risk but has no
economic feedback in what they're doing to cause them to think
about that is proceeding essentially without any input, any sanity.
So somebody who, you know--we went and genetically modified
all the corn in the world and we said, for example, it would never
effect the wild corn in Mexico. Well it did. Well…
Peter Robinson: That's happened now?
Bill Joy: Yeah. Too bad. But there's no one to take responsibility. If there
had been a catastrophe, who knows what would have happened.
Peter Robinson: So the government…
Bill Joy: So who takes responsibility? The company that does it can just go
bankrupt in our financial system if there's a big accident. And what
ends up happening is we all get stuck with the collective costs of a
cleanup.
Peter Robinson: So what do you make of this? As a practical matter, his regime of
relinquishment?
Ray Kurzweil: I would agree with what I call fine grained relinquishment and
that--I think that it's a good idea to raise the level of concern about
these issues, certainly 9/11 has shown that we have hundreds of
vulnerabilities which are quite mind boggling. And these new
technologies are far more powerful and will create far more danger.
I do think we have to be very concerned about it and I think the
answer is not broad relinquishment but there are specific
developments that would be too dangerous and we should--that we
should not pursue. I think the answer is a set of ethical standards of
responsible practitioners.
Peter Robinson: Established by whom?
Ray Kurzweil: Well I think it's a collaboration between the technologists and
society. I mean, they say war is too important to leave to the
generals. I think technology is too important potentially to the
technologists. I think it's got to be a whole social discussion.
Peter Robinson: Like a professional board, like the American Medical Association
or do you want a…
Ray Kurzweil: This is not a new idea. I mean, if you go into biotechnology today,
there are very detailed ethical standards and they're backed up by
legal regulation, which is quite active in the medical field.
Peter Robinson: Okay.
Ray Kurzweil: Perhaps not as active in areas like corn but so I mean, we do have to
have regulation. We have to have ethical standards. We have to, I
think, put a lot more effort into developing technological safeguards
and immune systems and counter veiling technology that…
Bill Joy: The problem we have is that the benefit flows to those who exploit
the technologies and take the risks. And the cost of the cleanup and
the defense largely is a--becomes a governmental function.
Peter Robinson: So does Bill believe that government needs to control technology
development or are there other solutions?
Title: Risky Business
Peter Robinson: You read through the responses to your article and what you get
from a lot of quarters is, ultimately he's calling for coercion,
meaning if people relinquish it works fine. If they don't relinquish
and somebody won't--then the government has to step in. So how
do you response to that?
Bill Joy: Well I actually wrote an Op Ed about a year and a half ago in the
Post where I made some specific suggestions. I suggested that
scientists take a Hippocratic Oath. That was suggested by Hans
Bethe. I think that would be constructive.
Peter Robinson: "First do no harm…"
Bill Joy: Yeah, it's part of developing a notion of taking responsibility for
consequences. Josh Letterberg who spent a lot of time worrying
about bioweapons suggested that we bring back technology
assessment as an inter-government, intergovernmental function so
we think about some of these things a little more before we do
them. I think that's a good step. But the, you know, there was a list
of five things. I'm not going to do them all but the third one was to
say, if we--through a technology assessment, we discover that
certain technologies are very dangerous, then we ought to try to
provide economic feedback to those who would use it so they
balance the risk and the reward. And one way you can do that is to
force people to take catastrophic risk insurance. And if you can't
get the catastrophic insurance, you don't use the technology. Today
something that's very risky but has no cost, no unit cost, looks very
great because you're not actually--the company that's using that
technology isn't paying for the risk.
Peter Robinson: So you could apply, say--would this strike you as a--this may be a
crude parallel but the notion that one way of approaching the
problem of pollution is to cause polluters to pay for it. So a factory
that pollutes has to--you kind of…
[Talking at same time]
Peter Robinson: But that's a way of making the market respond itself. Right?
Bill Joy: What could we do today is we have this very, very time consuming
procedure we introduce into drugs. Instead we could make the
companies that want to introduce them pay for the risk in some way.
Ray Kurzweil: I do agree with Bill here that we have to put a much higher priority
on being concerned about the dangers and risks. I think they're
manageable. We can take some comfort from how well we've
managed a risk in Bill's own area, which is software viruses, not
they're as dangerous as some of the other things we've been talking
about but the defenses have progressed along with the evolution of
the offensive use of software viruses and we've kept them relatively
at bay. If we can do half as well in some of these other areas, that'll
be beneficial.
Peter Robinson: Bill, let me--last question for you. We've got Thomas Malthus
arguing in the Eighteenth Century that population grows faster than
food supplies so human populations are constantly going to be
crashing through starvation. You've got the Club of Rome in the
1970's predicting that certain resources will become scarce. In fact,
new technologies are developed, new deposits of oil and minerals
are developed, all the prices of the commodities that they were
worried about twenty and thirty years ago are lower today than they
were then. So there seems to be this kind of allure for the expert
mind to predict catastrophe. And the question would be, that's a
line of argument for poo-pooing you. How do you say, no, don't
poo-poo me. This is different.
Bill Joy: What I'm really saying is that the technologies that are emerging are
sufficiently powerful that they can be used to redesign ourselves in
the world. And I don't think there's much dispute about that, that
using biotechnology we can reengineer our species if we so choose.
Using nanotechnology we can do all sorts of amazing things if we
so choose and that we will eventually be able to make intelligent
machines. I think some people may argue about whether it's thirty
years or a hundred years but those technologies are sufficiently
powerful that we can reinvent the world and then reinvent
ourselves. And all I'm saying is that rather than letting whatever
happens happens, we ought to think about what kind of world we
want to have. If we have the power to invent it, we ought to take
some time and have a discussion about what kind of world we want
to have. And the first part of that is to take and have a discussion
about how much risk we want to take because these technologies
are very risky. They're proponents and no one really denies that
anymore.
Peter Robinson: Bill Joy and Ray Kurzweil, thank you very much.
Peter Robinson: I'm Peter Robinson for Uncommon Knowledge. Thanks for joining
us.
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