The following is an excerpt from Edward O. Wilsons's The Meaning of Human Existence, which publishes today, and has been longlisted for the National Book Award for Nonfiction.
If anyone is qualified to approach such a lofty-sounding topic, it's
Wilson, whose writing on the intersections of biology and the humanities
have earned him two Pulitzer Prizes. An environmentalist,
sociobiologist and novelist, Wilson imbues his understanding of the
natural world with his secular humanist viewpoints. In the below essay,
he addresses why reading -- and fiction in particular -- are as valuable
as technological advancements.
You might think this odd coming from a data-driven biologist, but I
believe that the extraterrestrials created by the confabulations of
science fiction serve us in an important way: they improve reflection on
our own condition. When made as fully plausible as science allows, they
help us to predict the future. Real aliens would tell us, I believe,
that our species possesses one vital possession worthy of their
attention. It is not our science and technology, as you might think. It
is the humanities.
These imagined yet plausible aliens have no
desire to please or elevate our species. Their relation to us is
benevolent, the same as our own toward wildlife grazing and stalking in
the Serengeti. Their mission is to learn all they can from the singular
species that achieved civilization on this planet. Wouldn’t that have to
be the secrets of our science? No, not at all. We have nothing to teach
them. Keep in mind that nearly everything that can be called science is
less than five centuries old. Because scientific knowledge has been
more or less doubling according to discipline (such as physical
chemistry and cell biology) every one or two decades for the past two
centuries, it follows that what we know is by geological standards brand
new.
Technological applications are also in an early stage of
evolution. Humanity entered our present global, hyperconnected
technoscientific era only two decades ago -- less than an eyeblink in
the starry message of the cosmos. By chance alone, and given the
multibillion-year age of the galaxy, the aliens reached our present-day,
still-infantile level millions of years ago. It could have been as much
as a hundred million years ago. What then can we teach our
extraterrestrial visitors? Put another way, what could Einstein as a
toddler have taught a professor of physics? Nothing at all. For the same
reason our technology would be vastly inferior. If that were not so, we
would be the extraterrestrial visitors and they the planetary
aboriginals.
"There
is another cardinal reason for treasuring the humanities. Scientific
discovery and technological advance have a life cycle. In time, after
reaching an immense size and unimaginable complexity, they will
certainly slow and stabilize at a much lower level of growth."
So
what could the hypothetical aliens learn from us that has any value to
them? The correct answer is the humanities. As Murray Gell-Mann once
remarked of the field he has pioneered, theoretical physics consists of a
small number of laws and a great many accidents. The same is true, a
fortiori, of all the sciences. The origin of life occurred
over three and a half billion years ago. The subsequent diversification
of the primordial organisms into species of microbes, fungi, plants, and
animals is only one history that could have occurred out of a
near-infinitude of histories. The extraterrestrial visitors would know
this, from robot probes and the principles of evolutionary biology. They
could not immediately fathom Earth’s full history of organic evolution,
with its extinctions, replacements, and dynastic rise and fall of major
groups -- cycads, ammonoids, dinosaurs. But with their super-efficient
fieldwork and DNA-sequencing and proteonomic technology, they would
quickly learn Earth’s fauna and flora at the present moment, and the
nature and ages of the forerunners, and calculate patterns in space and
time of life’s evolutionary history. It’s all a matter of science. The
aliens would soon know all that we know called science, and much more,
as though we had never existed.
In a closely parallel manner
during the human history of the past hundred thousand years or so, a
small number of cultures arose, then gave birth to the thousands of
daughter cultures. Many of these persist today, each with its one
language or dialect, religious beliefs, and social and economic
practices. Like species of plants and animals splintering across the
geological ages, they have continued to evolve, alone, or divided into
two more cultures, perhaps fused in part, and some have just
disappeared. Of the nearly seven thousand languages currently spoken
worldwide, 28 percent are used by fewer than a thousand people, and 473
are on the edge of extinction, spoken only by a handful of elderly
people. Measured this way, recorded history and prehistory before it
present a kaleidoscopic pattern similar to that of species formation
during organic evolution -- yet different in major ways from it.
Cultural
evolution is different because it is entirely a product of the human
brain, an organ that evolved during prehuman and Paleolithic times
through a very special form of natural selection called gene-culture
coevolution (where genetic evolution and cultural evolution each affect
the trajectory of the other). The brain’s unique capability, lodged
primarily in the memory banks of the frontal cortex, arose from the
tenure of Homo habilis two million to three million years ago until the
global spread of its descendant Homo sapiens sixty thousand years ago.
To understand cultural evolution from the outside looking in, as opposed
to the inside looking out, the way we do it, requires interpreting all
of the intricate feelings and constructions of the human mind. It
requires intimate contact with people and knowledge of countless
personal histories. It describes the way a thought is translated into a
symbol or artifact. All this the humanities do. They are the natural
history of culture, and our most private and precious heritage.
There
is another cardinal reason for treasuring the humanities. Scientific
discovery and technological advance have a life cycle. In time, after
reaching an immense size and unimaginable complexity, they will
certainly slow and stabilize at a much lower level of growth. Within the
span of my own career as a published scientist across half a century,
the number of discoveries per researcher per year has declined
dramatically. Teams have grown larger, with ten or more coauthors on
technical papers now a commonplace. The technology required to make a
scientific discovery in most disciplines has become much more complex
and expensive, and the new technology and statistical analysis required
for scientific research more advanced.
"With
more and more decision making and work done by robots, what will be
left for humans to do? Do we really want to compete biologically with
robot technology by using brain implants and genetically improved
intelligence and social behavior?"
Not to worry. By the
time the process has set in, likely in this century, the role of science
and high technology will, as expected, be beneficent and far more
pervasive than now. But -- and this is the most important part --
science and technology will also be the same everywhere, for every
civilized culture, subculture, and person. Sweden, the United States,
Bhutan, and Zimbabwe will share the same information. What will continue
to evolve and diversify almost infinitely are the humanities.
For
the next few decades, most major technological advances are likely to
occur in what is often denoted BNR: biotechnology, nanotechnology, and
robotics. In pure science the secular grails now sought along the broad
frontier include the deduction of how life originated on Earth, along
with the creation of artificial organisms, gene substitution and
surgically precise modification of the genome, discovery of the physical
nature of consciousness, and, not least, the construction of robots
that can think faster and work more efficiently than humans in most
blue-collar and white-collar labor. At the present time these envisioned
advances are the stuff of science fiction. But not for long. Within a
few decades they will be reality.
And the cards are now on the
table, face up. First on the agenda is the correction of the more than a
thousand genes for which rare mutant alleles have been identified as
the cause of hereditary diseases. The method of choice will be gene
substitution, replacing the mutant allele with a normal one. Although
still in the earliest, mostly untested stage, it promises eventually to
replace amniocentesis, which allows first a readout of the embryonic
chromosome structure and genetic code, then therapeutic abortion to
avoid disability or death. Many people object to therapeutic abortions,
but I doubt that many would object to gene substitution, which can be
compared with replacement of a defective heart valve or diseased kidney.
An
even more advanced form of a volitional evolution, albeit indirect in
cause, is the homogenization ongoing among the world populations by
increased emigration and interracial marriage. The result is a massive
redistribution of Homo sapiens genes. Genetic variation between
populations is declining, genetic variation within populations is
increasing, and, as an overall result, the genetic variation of the
species as a whole is also increasing -- the last dramatically so. These
trends create a dilemma of volitional evolution likely to catch the
attention of even the most myopic political think tanks in a few
decades. Do we wish to guide the evolution of diversity in order to
increase the frequency of desirable traits? Or increase it still more?
Or finally -- this will almost certainly be the short-term decision --
just leave it alone and hope for the best?
Such alternatives are
not science fiction, and they are not frivolous. On the contrary, they
are linked to yet another biology-based dilemma that has already entered
public discussion, ranking with contraceptives in high school and
evolution-free textbooks in Texas. It is this: With more and more
decision making and work done by robots, what will be left for humans to
do? Do we really want to compete biologically with robot technology by
using brain implants and genetically improved intelligence and social
behavior? This choice would mean a sharp departure away from the human
nature we have inherited, and a fundamental change in the human
condition.
Now we are talking about a problem best solved within
the humanities, and one more reason the humanities are all-important.
While I’m at it, I hereby cast a vote for existential conservatism, the
preservation of biological human nature as a sacred trust. We are doing
very well in science and technology. Let’s agree to keep it up, and move
both along even faster. But let’s also promote the humanities, that
which makes us human, and not use science to mess around with the
wellspring of this, the absolute and unique potential of the human
future.
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