 |
|
|
|
|
|
Join the conversation at CRNtalk!
|
CRN Task Force Scenario Introduction The Center for Responsible Nanotechnology Scenario Project
INTRODUCTION TO THE SERIES
Let’s begin by clarifying the specific definition of ‘nanotechnology’ as it is used in our scenarios, as compared to the broad and diverse field of ‘nanotechnology’ that exists today. Current nanoscale technologies can and do include everything from lithography to optics to metrology, encompassing materials science, semiconductor manufacture, and even ranging into biotechnology.
At CRN, we’ve tried to narrow the definition a bit by describing nanotechnology as “the engineering of functional systems at the molecular scale.” This covers both current work and concepts that are more advanced.
Within the scenarios you’re about to read, the focus is on a particular advanced form of nanotechnology, often referred to as ‘molecular manufacturing’. Future generations of nanotechnology will use sophisticated nanoscale machinery to construct powerful products with molecular precision. Molecular construction will lead to revolutionary capacities, including tabletop fully automated factories capable of constructing duplicate factories in less than a day.
The economic, security, military, and environmental implications of molecular manufacturing are extreme. Unfortunately, conflicting definitions of nanotechnology and blurry distinctions between significantly different fields have complicated the effort to understand those differences and to develop sensible, effective policy for each.
The risks of today's nanoscale technologies cannot be treated the same as the risks of longer-term molecular manufacturing. It is a mistake to put them together in one basket for policy consideration—each is important to address, but they offer different problems and will require far different solutions. As used today, the term nanotechnology usually refers to a broad collection of mostly disconnected fields. Essentially, anything sufficiently small and interesting can be called nanotechnology. Much of it is harmless. For the rest, much of the harm is of familiar and limited quality. Molecular manufacturing, by contrast, will bring unfamiliar risks and new classes of problems.
Desktop nanofactories will use vast arrays of tiny machines to fasten single molecules together quickly and precisely, allowing engineers, designers, and potentially anyone else to make powerful products at the touch of a button. Although such a contraption has been envisioned in some detail for almost two decades, and although the basic concept goes back to 1959, when the physicist Richard Feynman first articulated it, it’s only in recent years that technology has advanced to the point where we can begin to see the practical steps that might bring it into reality.
Just last week, for example, the first version of a Technology Roadmap for Productive Nanosystems was published. This event marks the completion of a broad, years-long, multidisciplinary effort to explore how current laboratory techniques for atomically precise fabrication can be extended, step by step, toward increasingly advanced products and capabilities. As part of a study released in December 2006, the U.S. National Research Council reviewed the technical analysis originally presented in Eric Drexler’s Nanosystems: Molecular Machinery, Manufacturing, and Computation (1992) and called for experimental research in support of molecular manufacturing. Subsequently, DARPA issued a request for proposals for developing tip-based nanofabrication at the threshold of atomic precision, and the U.K. government announced grants to research teams developing nanomachines that can build materials molecule by molecule.
Taken together, what these developments mean is that warnings, from CRN and others, about the possibly disruptive impacts of a mature molecular manufacturing technology should be taken seriously. We advocate the prompt and thorough investigation of both potential benefits and anticipated risks to see what might be done now and in the next few years to mitigate the dangers and increase the likelihood of beneficial outcomes. Along those lines, we initiated a project earlier this year to create a series of professional-quality scenarios of a near-future world in which exponential general-purpose molecular manufacturing might be developed and deployed.
In pursuing this project, CRN pulled together more than 50 people from six continents, with a range of backgrounds and points of view, as potential collaborators. Over the course of several months, we conducted a unique series of “virtual workshops,” using a combination of teleconferencing, Internet chat, and online shared documents, and in the end produced eight very different scenarios. Workshop participants were given the sole guideline that nanofactory technology should be expected to arrive no later than 2022—everything else came from the collective knowledge and imaginations of the scenario working group.
The development of
molecular manufacturing over the course of the next 15 years is in many ways the
paradigmatic example of what scenario specialists refer to as a “critical
uncertainty.” When nanotechnology-enabled molecular manufacturing appears, few
observers doubt that it will fundamentally reshape everything from
transportation, energy, and information networks, to how we do business, to how
we make war. Go to Nanotechnology Scenarios |
Copyright © 2002-2008 Center for Responsible Nanotechnology TM CRN was an affiliate of World Care®, an international, non-profit, 501(c)(3) organization.
|
