The Criticism from Incredulity
Perhaps the most candid criticism of the future I have envisioned here is simple disbelief that such profound changes
could possibly occur. Chemist Richard Smalley, for example, dismisses the idea of nanobots being capable of
performing missions in the human bloodstream as just "silly." But scientists' ethics call for caution in assessing the
prospects for current work, and such reasonable prudence unfortunately often leads scientists to shy away from
considering the power of generations of science and technology far beyond today's frontier. With the rate of paradigm
shift occurring ever more quickly, this ingrained pessimism does not serve society's needs in assessing scientific
capabilities in the decades ahead. Consider how incredible today's technology would seem to people even a century
ago.
A related criticism is based on the notion that it is difficult to predict the future, and any number of bad
predictions from other futurists in earlier eras can be cited to support this. Predicting which company or product will
succeed is indeed very difficult, if not impossible. The same difficulty occurs in predicting which technical design or
standard will prevail. (For example, how will the wireless-communication protocols WiMAX, CDMA, and 3G fare
over the next several years?) However, as this book has extensively argued, we find remarkably precise and
predictable exponential trends when assessing the overall effectiveness (as measured by price-performance,
bandwidth, and other measures of capability) of information technologies. For example, the smooth exponential
growth of the price-performance of computing dates back over a century. Given that the minimum amount of matter
and energy required to compute or transmit a bit of information is known to be vanishingly small, we can confidently
predict the continuation of these information-technology trends at least through this next century. Moreover, we can
reliably predict the capabilities of these technologies at future points in time.
Consider that predicting the path of a single molecule in a gas is essentially impossible, but predicting certain
properties of the entire gas (composed of a great many chaotically interacting molecules) can reliably be predicted
through the laws of thermodynamics. Analogously, it is not possible to reliably predict the results of a specific project
or company, but the overall capabilities of information technology (comprised of many chaotic activities) can
nonetheless be dependably anticipated through the law of accelerating returns.
Many of the furious attempts to argue why machines—nonbiological systems—cannot ever possibly compare to
humans appear to be fueled by this basic reaction of incredulity. The history of human thought is marked by many
attempts to refuse to accept ideas that seem to threaten the accepted view that our species is special. Copernicus's
insight that the Earth was not at the center of the universe was resisted, as was Darwin's that we were only slightly
evolved from other primates. The notion that machines could match and even exceed human intelligence appears to
challenge human status once again.
In my view there is something essentially special, after all, about human beings. We were the first species on
Earth to combine a cognitive function and an effective opposable appendage (the thumb), so we were able to create
technology that would extend our own horizons. No other species on Earth has accomplished this. (To be precise,
we're the only surviving species in this ecological niche—others, such as the Neanderthals, did not survive.) And as I
discussed in chapter 6, we have yet to discover any other such civilization in the universe.
The Criticism from Malthus
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