Have
you ever heard of “Pure Science?” The term is intended to denote
science that is aimed at discerning some basic Truth, something for
which no practical end is envisioned, but which the scientist is
obsessed with finding out anyway. Interestingly, it is the science
that is pure, not the scientist.
The
scientist is just another human being, like us. Fortunately, most of
us are reasonably good people, and most scientists are good, and they
picture themselves as good,i
but it's not always the case. Even when it isn't, however, society
has placed scientists on a pedestal and their work and their views
are often regarded as bearing weight that may not be there. Their
phlogiston is heavier than ours.
One
of the evidences that their intellectual production is less than
perfect is the fact that what is accepted by the rest of us on their
say-so isn't always the case, and “facts” change. The earth is
not the center of the universe; there is no such thing as a
philosopher's stone; the atom can be subdivided; and there are
numerous other examples. But that is why they do their work: to
learn and, when necessary, to change our understanding of the world
in which we live. It's a noble calling.
It's
a calling, however, whose methods and results society may not
understand. The media are quick to publish as established fact an
unverified first report. It may make good press, but it's bad
science. There is a well-established principle in scientific
research that studies must be replicated and verified before their
conclusions are accepted as fact. But for the media, such principles
shouldn't stand in the way of a front-page story. If a retraction is
ultimately necessary, it can be placed on an inside page – at the
bottom – if it appears at all.
There
are many who have a vested interest in glorifying scientific
postulations: those who question organized religion. For them,
Science is
their religion,ii
and scientists make up the pantheon: there is no G-d, there are only
scientists. If it can't be proved and quantitated, it isn't true.
Religion is irrational. For some though, believers, rationality is
overrated. If there is a conflict between science and religion,
science must give way. Others, however, perhaps the majority, either
give no thought to any disagreement, or they find a way to
rationalize it. They, too, attribute great wisdom to the words of
scientists.
And
that can be a problem. While it is likely that scientists a far more
intelligent than the general population, they have flaws too. They
sometimes promote fallacies. There are three categories of errors –
those made inadvertently, those made for personal benefit, and those,
unrelated to science, made outside of their field – possibly based
on ideology.
People
make mistakes. Everyone. In science, honest ones may be based on
poor study design, lack of knowledge, inexpert technique, or lack of
attention. Perhaps they are the product of random distribution or
sampling error. Others result from outside pressures, like deadlines
for publication or the desire to beat a competitor. Their work may
generate mistaken conclusions. Often it is corrected, or it fails
peer review. But often it gets through. In a proper setting,
however, confirmatory studies will be attempted and the errors
determined before there is general publicity and before the results
become the basis for further work.
But
there are occasions when a particular result is desired, or it
magically coincides with preconceived notions about what the results
will be. That may be in order to earn community acceptance, fameiii
or tenure for the investigator or, if some commercial product is
involved, it may be because of benefits provided by the firm that
manufacturers the product being tested. Perhaps a drug is being
tested and the research concerning it is needed for FDA approval –
approval that will only be granted if the results indicate its value.
It is possible that dinners, vacations, paid “consultations” or
“lectureships” will participate in the evaluation of that
research. Or it may be that there will be more negotiable benefits.iv
There are fences to guard against this kind of practice,v
but they're not universally effective since a family member or a
friend may be named as the beneficiary. Work promoting an invention
of the author, or his discovery, are more likely to be spotted.
But,
though we usually credit most scientists with intelligence, there is
a big difference between intelligence and wisdom. With a desire to
promote a particular point of view, an “ax to grind,” the
investigator may choose a particular field in which some project can
be found that will support his position. Others, favoring some idea,
will interpret data to prove it. If someone has strong convictions
about a notion – political, religious, social, or otherwise – he
may use science to promote it, even if he has to “cherry-pick”
the studies he uses as evidence. “Junk science” is the result of
many of these techniques.vi
Or, based on ideology, a scientist may venture outside of his field
of expertisevii
because his fame will give wider publicity to the view he wants to
express,viii
whether it involves an unrelated area of science, a social cause, or
a political position. He may have a good deal of intelligence but be
entirely devoid of wisdom.
My
intent is not to minimize the contributions of science. It is merely
to point out that scientists are not gods, but humans who work in the
field of science. They have good rules though, and among them are:
wait until an idea is confirmed several times before acting on it;
don't stray from your area of expertise without help from someone in
the new field and plenty of study; and don't mix science with
anything else. From our point of view, the most important things we
can do are to be sure that they follow their own rules, and to let
them know when they don't.
Next
episode: “The Lesser Of Two
Evils” – On compromise.
i Here
I'm discussing character primarily (though not exclusively), however
scientific knowledge and ability do play a part.
ii That
scientific “facts” may later be found to be wrong doesn't
disprove their religion any more than a change in practice disproves
another religion.
iii Data
were reported to have been falsified by an investigator who claimed
that immunizations caused autism.
iv Yes,
sad to say. Bribery does occur.
v The
most frequent are the suspicious department head and Ethics
Committee and the requirement for full disclosure of any
relationship with the research's funding source.
vi For
example, both those who favor active steps to limit production of
carbon dioxide with the view that this will be of significant
benefit in the battle against global warming, and those who doubt
that it will be of much help and that its costs will exceed its
benefits, accuse their opponents of using junk science.
vii Psychologists
and those who study the brain and intelligence may claim that there
is a genetic basis for intelligence, while other scientists, not in
this field, may consider it a reactionary idea that there may be
variation between men and women, and between the different races.
All people are created equal – at least in terms of intellectual
potential. If differences are found, those results are erroneous.
viii And
it's not just scientists who do this. An actor may, all of a
sudden, become an expert on social policy, or an athlete on
politics.