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We are
already in the early stages of a transition that will radically alter
civilization and even the human species itself. The Spike, by Australia’s
respected cultural theorist and science writer Damien Broderick, offers an
insightful survey of cutting-edge science of today and the not-so-distant
future. First published in Australia in 1997, The Spike has been thoroughly
updated for its release in the USA.
Advances in several fields of
applied science are following a course whose graphs have remained relatively
flat throughout human history but are suddenly becoming steeper. If current
trends continue, the graphs will become almost vertical within the next thirty
to fifty years. Broderick refers to this interval of rapid change as The Spike,
because that’s what the graphs resemble.
Probably the most commonly
known of these trends Is Moore’s Law, which holds that computing power
(expressed as the number of components on an integrated circuit) per dollar will
double every eighteen months to two years. The arithmetic is easy to do. Start
with 2 x 1 = 2; 2 x 2 = 4; 2 x 4 = 8; by the time you’ve repeated the
multiplication process twenty times you’ve increased computing power by a
factor of a million, and the twenty-first multiplication increases it by a
million more. Although trends do not always continue to the runaway Spike stage,
there are no obvious reasons to anticipate that current growth will slow
significantly within the next thirty years.
Because The Spike represents
such a dramatic shift in the rate of technological advance, it is impossible to
accurately predict what the post-Spike world will be like, but by projecting
existing trends into the future experts can make educated guesses. The three
fields which are likely to have the greatest impact on the future are
biotechnology, nanotechnology, and artificial intelligence. Broderick provides
an intriguing tour of some of the technological wonders that may be part of our
reality later this century.
Genetic engineering, more
fully covered in Broderick’s book The Last Mortal Generation, could
abolish disease, aging, and even death
Molecular Nanotechnology, or
minting (from the initials MNT), may allow the assembly of goods at the
molecular level. Using minting, you could produce "whatever you want to
build, if you have the plan and the laws of physics don’t forbid it."
With self-replicating assemblers, finished products could be had for little more
than the cost of the raw materials. Take diamonds. They’re made of carbon, and
carbon is cheap. The minting process could use diamond, with a
strength-to-weight ratio fifty times greater than steel, to fashion the frames
of high-rise buildings or space stations. A serving of perfectly aged and
roasted prime rib could be constructed atom by atom. Walkways could be paved
with photovoltaic cells.
Artificial Intelligence, or
AI, might take the form of a PC with the reasoning power of the human mind; or a
self-aware Internet; or a Super Intelligent machine beside which a human would
seem incredibly slow and stupid. Humans could enhance their brains by linking
them to other brains or to machines. Or human personalities could be uploaded to
machines. The last two possibilities add new dimensions to the question of
self-identity.
Such things as diamond sky
scrapers and linked human brains may seem more like fantasy than science, but
they are based on foreseeable development of existing technology. And
shockingly, such advanced development could take place within the next fifty
years. Mathematician Vernor Vinge predicts a spike some time between 2030 and
2100 for AI, and graphs of trends in several other fields of applied science
converge around the year 2050.
While Broderick’s sweeping
account of the current and possible future states of technology is wonderfully
exciting, the most valuable aspect of The Spike may be the questions it
raises about technology’s impact on human society. The technological spike may
occur later than predicted, or not at all; but technology will continue a
rapid acceleration that will have an effect on every aspect of human life.
Many of our social
institutions are already obsolete, and the situation will only grow worse as
time goes by unless we make a greater effort to keep up with our technology.
Even benefits such as free food and shelter would result in major social
upheaval. What happens when there are no longer jobs? What would a society of
immortal people be like? Should intelligent machines enjoy human rights? Some
readers will not agree with Broderick’s tentative answers, and he makes it
clear that he is not attempting to do more than continue a discussion he began
with the publication of the first edition of The Spike. The important
thing is that other people including lawmakers, educators, social scientists
join in and contribute to the discussion. Overall Broderick seems to be
optimistic about the ability of our species to get our act together. "Yes,
science is made by humans," he writes, "and its knowledge is
contaminated by our local limitations. But we cup our hands, and the cosmos
fills them to overflowing."
Review by Barbara Lamar
Purchase The Spike
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