These pages, marked with GREEN headings,
are published for comment
and criticism. These are not our final findings; some of these opinions
will probably change.LOG OF UPDATES
Overview: Early
development of molecular
nanotechnology (MNT) increases some risks, but reduces others; overall,
we think it's safest to develop as soon as possible. This is a preliminary
conclusion, and we may change our opinion, but there are solid reasons
for taking this position. The development of MNT seems inevitable sooner
or later. If development is delayed, it will rapidly become easier and
cheaper, thus harder to control. Also, it's probably the case that early
development will allow more time to develop MNT-based protective technologies—which
may be necessary to cope with some dangerous MNT-based technologies.
Finally, if it's done right, molecular
manufacturing could save millions of lives per year and greatly
decrease the environmental damage
we're already doing. The costs of delay (opportunity costs) are significant,
and may even outweigh the risks of development.
MNT
is inevitable; the question is when.
Science and
technology are rapidly gaining competence at the nanometer scale.
According to Ray Kurzweil's recent testimony
to the US Congress, "most of technology will be 'nanotechnology'
by the 2020s." In other words, before 2030, most fields of technology
will make routine use of nanometer-scale components. At some point
after that, the seemingly miraculous MNT will
be commonplace: regardless of whether Drexler-style
nanosystems are ever built, automation and miniaturization will have
duplicated the important aspects of the technology. But MNT almost
certainly will be developed earlier. There will be strong economic
pressure to develop it as soon as the cost of development falls within
the range of corporate R&D. Given the national security implications,
it's likely that governments will be working on it well before then.
And, as we explain here, there may be reasons to develop it internationally,
before national programs can get started.
Development
will rapidly become cheaper.
Technically,
the development of MNT depends on a design and on a molecular manipulation
capability. Chemistry, scanning probe microscopy, optics, lithography,
and a variety of other fields are rapidly advancing our ability to design,
create, and manipulate molecular structures. Just in the last few years,
several new families of large designer molecules have been discovered.
Computer simulation is also developing rapidly as computers become more
powerful and new algorithms are discovered. These trends, and several
others, will continue. As more options become available, the design
of a molecular manufacturing system will become easier. Development
efforts will require far less investigation of fruitless possibilities.
Today, an MNT development program would cost many billions of dollars.
Sometime in the future, probably well within this century, it will be
a science fair project. Between the two extremes is either a rapidly
falling curve or a sudden, unpredictable decrease in cost.
Delay
may lead to multiple MNT projects.
If MNT is
not developed as soon as possible, the rapidly falling cost will allow
several players—corporations and/or nations—to pursue independent
development projects. A delay could happen for several reasons. Overly
pessimistic opinions about the feasibility of MNT could reduce initial
interest. Environmental or social concerns, or simple Luddism, could
delay the research. Spending large amounts of money requires either
political will or corporate boldness, which could be lacking at the
crucial time.
If MNT development
is significantly delayed for any reason, then by the time a project
is started, development will be considerably easier. Political and economic
pressure for development will rapidly increase. The rapidly falling
cost of development will allow more groups to enter the race, while
also greatly improving the cost/benefit ratio. Similarly, there will
be a rapid increase in the number of foreign powers who could make a
credible attempt at developing what is (among other things) a massive
military force multiplier; once one program starts, a perceived "nanotechnology
gap" could lead to crash programs in a number of countries that do not
fully trust each other. As the number of contenders in an arms race
increases, the risk of preemptive strikes probably increases as well.
One
early project is easier to control.
If MNT is
developed in several projects almost simultaneously, each owner will
be able to choose what to do with it. There will be less scrutiny of
each project. Any controls that need to be imposed will require much
more effort. Conversely, a single project provides a single point to
monitor and control. An early project, started when the resources required
are still quite large, reduces the uncertainty about who else could
be working on MNT development. It may also reduce the incentive for
other projects to start later; many intellectual property rights, and
some national security benefits, of an MNT program will be lost if it
can't keep up with the first project.
Early
MNT gives us a head start at defensive technologies.
Some of the
problems that MNT could create may only be dealt with effectively by
MNT-based technologies. For example, as noted by Robert
Freitas, widespread detection networks may be necessary to deal
effectively with grey goo. A system that can sample large volumes
of air or water for sub-micron particles,
and respond with sufficient speed to clean up an infestation, could
probably only be built by MNT. Nanotech-built weapons may pose a far
greater threat to human well-being. It would be a good idea to start
practical engineering on defensive MNT-built technologies well in
advance of the development of aggressive or dangerous technologies.
This might be helped by developing MNT early, on the theory that early
development will allow more selection—at least at first—of
who gets to do research with the technology.
Early
MNT can solve tangible problems.
Technology,
applied appropriately, can mitigate many current problems. Large areas
of the world currently suffer from a lack of technological infrastructure.
This is currently a self-perpetuating problem. Portable, rapid, flexible
manufacturing could solve it quickly. Health requires sanitation; efficient
trading and democratic government require communications. Sanitation
and communication could be supplied almost trivially with MNT. This
would save millions of lives in the poorest areas of the world, and
greatly increase global prosperity (which would provide vast new markets
for commercial enterprises).
Advanced
technology can reduce much of the current environmental burden.
From a hut heated by a smoky dung fire to a mansion with kilowatts of
incandescent lights (which are only 1% efficient), people worldwide
throw away most of the energy they consume. The same is true of potable
water—most of it is used for industry and agriculture. In countries
fortunate enough to have modern medicine, present-day techniques require
awesome quantities of material and labor to keep their populations somewhat
healthy.
MNT will
not magically invent the solutions for most of these problems. But once
a solution is developed, it can be applied quickly and globally at very
low cost. If MNT is developed even a few years early, and used well,
tens or hundreds of millions of lives will be saved. Any risk that is
exacerbated by early development must be balanced against this very
significant benefit.
DEVIL'S ADVOCATE —
If
it's so dangerous, why allow development at all?
As we said above, sometime
in the next few decades, MNT will become very easy to develop for any country
or large corporation. We don't believe that development can be prevented
forever.
Wouldn't
it be better to wait until we know more about how to deal with the risks?
Some knowledge can only
be gained in the lab. If we wait, people will be thinking up new kinds of
weapons, and getting better at using MEMS and other small technologies.
MNT will be disruptive, and hard to control, whenever it happens. We think
that there'll be less disruption if it's developed early enough that it's
only developed in one place. We're open to argument on this point. But remember
that millions of people will die tragically and preventably each year that
it's not developed. That's a certainty, not a risk, but any risk must be
balanced against it.
[Comment
submitted by Noah Ennis] Very interesting series of articles.
I wonder, though, if "millions of people will die each year nanotechnology
isn't developed" is not a false dilemma. After all, the choice is not
strictly between developing nanotechnology and letting millions in the
third world perish. The choice is between those two extremes and the
middle ground of alleviating poverty through existing technologies --
for example, vaccines and mosquito nets -- which are already well within
the West's technological and economic capabilities to produce in large
quantities. The reason they don't is not economic at all, but political.
The conclusions drawn by CRN about MNT point to far more powerful intellectual
property protections, as well as centralized control of the manufacturing,
which seem to make the situation worse, not better. So although MNT
has a huge amount to offer for mitigating the effects of poverty and
developing third world infrastructure, posing its development as a moral
imperative is somewhat of a red herring when there are alternatives
within our means that are subject to the same imperative without any
of the relevant moral risks. There are many superlative reasons for
advocating MNT, but the moral implication that failure to do so costs
X many lives, inasmuch as MNT is a technological instead of political
solution, strikes me as misleading.
Thanks, Noah. Your point
is well taken. Millions of people around the world are suffering and dying
needlessly today, not because we lack basic technologies that could
help them, but because we lack political will to implement basic solutions.
A large part of CRN's work is aimed at understanding these political mechanisms
and the underlying social systems that
drive them. We agree that creating a powerful new technology, like MNT,
is only half the battle -- or maybe much less than half. The real challenge
is in finding effective ways to guide the development and proliferation
of the technology so that the most beneficial
outcomes can be achieved, while the greatest
risks can be averted. We've said all along that it won't
be easy, and that's why we urge responsible government agencies,
educational institutions, concerned businesses, and civil society
groups to adopt some or all of CRN's Thirty
Studies as an important first step toward clarifying the many
issues involved.