In my
opinion, one of the most interesting points in SF – here I mean hard SF and not
Fantasy – is its capacity to ask questions about our universe and try to reply
through reasonable and somewhat logical, if not possible, answers. Numerous SF
authors build their stories by answering the question “What if…?”
Of course,
all sorts of literature can ask good questions and answer them; but it seems to
me that SF authors have special avenues of freedom to do so, for several
reasons.
The first
reason is that in a conventional novel, you are severely limited by natural
boundaries: the story takes place in such country at such an epoch. The plot is
set in a place and time which will influence the behavior of the characters if
there is to be some consistency in the story. Even when place and time are not
explicitly defined, the reader is generally able to infer them. On the other
hand, if the action takes place not only far away on earth, but somewhere else
in the universe, and in a distant past or future, those boundaries are not so
strict.
You might retort that the legends and fairy tales or the fantasy novels have a lot of freedom,
and probably more than SF novels. True, but the questions they ask and the
answers given are not driven by logic. To take an example, in the One Thousand
and One Nights stories, people use flying carpets. In Dan Simmons’ Hyperion SF novels,
flying carpets are also used, on a world called Maui-Covenant; but they are
called hawking mats and we understand that they use some antigravity principle
through flight threads embedded in the carpet fabric, which can be charged with
a battery. And that little explanation makes all the difference between the
legend where the flying carper is just magic, and the SF story where the
author suggests there is some technology based upon physical principles.
To go
further, it is interesting to note that someone like the internationally
acclaimed physicist Dr Michio Kaku studied the physical possibility of such
feats as using time machines, travelling faster than light, becoming invisible
and other “impossible” actions described in SF stories. He ended his study by
dividing the “impossible” into three categories. In the class I impossibilities,
he grouped technologies that are impossible today but that do not violate the
known laws of physics; thus they might be possible within the next centuries. They
include teleportation, antimatter engines, some forms of telepathy,
psychokinesis and invisibility. In the class II, he includes technologies that
sit “at the very edge of our understanding”: they would be possible in a matter
of thousands of years and include such things as time machines, hyperspace
travel or use of wormholes. In the class III he groups the technologies that
violate the known laws of physics. Do you believe it? He found there are very
few such impossibilities in that class.
Coming back
to our matter, we thus are able to affirm that the majority of the impossible technologies
described in our SF stories could be realized by science some future day.
The second reason
– and to me it is a very exciting one – is that it is easier to criticize or
simply evaluate a given state of affairs from a distance rather than from the heart
of it. You can experiment it when you are in the heat of an exchange with, say,
your step mother: you may have difficulties to completely understand her point
of view. Throughout history, a fair number of satirists have used circuitous
means to criticize their society or environment without suffering the leaders’
wrath and censure. Even in our more tolerant societies we are bent by non-written
laws to keep more or less politically correct statements. But in SF, by setting
his plot on a faraway world in an unimaginable future, the writer increases
dramatically his possibilities to question all kinds of human behaviors and
societies without being too worried. Thus, viewed from remote, through the eyes of aliens or machines, he or she can more easily question not only matters such as political systems or social behaviors, but details we are not even conscious of in the course of our day-to-day habits, details that weave our very ways of life. In this sense, SF may approach the philosopher's questioning way, and for me this is highly interesting. Of course that kind of strategy has been used for centuries, for instance in Gulliver'sTravels, which could be viewed as some pre-SF novel.
Third – and
that is rather specific to the SF field – the writer is free to study the dynamics
of the situation as it unrolls during any length of time: in SF, periods spread
upon many thousands or millions or even billions of years are not uncommon. In
our society, where the vast majority of the problems we deal with are only
considered in the short term – decades at most – SF can offer speculation about
the very long term and ask ultimate questions such as: why we humans are there?
Where did we come from? What will become of the human species and its
environment in a thousand years? In a million years? What will become of our
universe? Is this universe the only one in existence? And so on…
But – and
that is a huge difference between (hard) SF and legendary stories – there is always
to be some consistency in the unrolling of the situation and its consequences.
Bibliography
Michio KAKU: Physics of the Impossible - A scientific exploration of the world of phasers, force fields, teleportation and time travel.Penguin Books, 2008 - London (329 pages)
Doubleday Broadway Publishing Group - New York