The Tragedy of the Commons
Garrett Hardin
A t the end of a thoughtful article on the future of nuclear war,Wiesner and York(1) concluded that:“Both sides in the arms fronted by the dilemma of steadily increasing military power and steadily de-creasing national curity.It is our considered professional judgment that this dilemma has no technical solution.If the great powers continue to look for solutions in the area of science and technology only,the result will be to worn the situation.”
I would like to focus your attention not on the subject of the article(national cu-rity in a nuclear world)but on the kind of conclusion they reached,namely that there is no technical solution to the problem.An implicit and almost universal assumption of discussions published in professional and mipopular scientific journals is that the problem under discussion has a technical solution.A technical solution may be de-fined as one that requires a change only in the techniques of the natural sciences,de-manding little or nothing in the way of change in human values or ideas of morality.
沁园春霾In our day(though not in earlier times) technical solutions are always welcome.Be-cau of previous
failures in prophecy,it takes courage to asrt that a desired tech-nical solution is not possible.Wiesner and York exhibited this courage;publishing in a science journal,they insisted that the solu-tion to the problem was not to be found in the natural sciences.They cautiously qual-ified their statement with the phra,“It is our considered ”Whether they were right or not is not the concern of the prent article.Rather,the concern here is with the important concept of a class of human problems which can be called“no technical solution problems,”and,more specifically,with the identifica-tion and discussion of one of the.
It is easy to show that the class is not a null class.Recall the game of tick-tack-toe.Consider the problem,“How can I win the game of tick-tack-toe?”It is well known that I cannot,if I assume(in keep-ing with the conventions of game theory) that my opponent understands the game perfectly.Put another way,there is no
“technical solution”to the problem.I can
win only by giving a radical meaning to
the word“win.”I can hit my opponent
over the head;or I can drug him;or I can
falsify the records.Every way in which I单姓
“win”involves,in some n,an aban-
donment of the game,as we intuitively
understand it.(I can also,of cour,open-
ly abandon the game—refu to play it.
This is what most adults do.)
The class of“No technical solution
problems”has members.My thesis is that
the“population problem,”as convention-
ally conceived,is a member of this class.
How it is conventionally conceived needs
some comment.It is fair to say that most
people who anguish over the population
problem are trying to find a way to avoid
the evils of overpopulation without relin-
quishing any of the privileges they now
enjoy.They think that farming the as or
developing new strains of wheat will solve
the problem—technologically.I try to
show here that the solution they ek
cannot be found.The population problem
cannot be solved in a technical way,any
more than can the problem of winning the
game of tick-tack-toe.
What Shall We Maximize?
Population,as Malthus said,naturally tends
to grow“geometrically,”or,as we would
now say,exponentially.In a finite world
this means that the per capita share of the
world’s goods must steadily decrea.Is ours
a finite world?
A fair defen can be put forward for the
view that the world is infinite;or that we do
not know that it is not.But,in terms of the
practical problems that we must face in the
next few generations with the foreeable
technology,it is clear that we will greatly
increa human miry if we do not,during
the immediate future,assume that the world
available to the terrestrial human popula-
tion is finite.“Space”is no escape(2).
A finite world can support only a finite
population;therefore,population growth
must eventually equal zero.(The ca of
perpetual wide fluctuations above and below
zero is a trivial variant that need not be
discusd.)When this condition is met,what
will be the situation of mankind?Specifical-
ly,can Bentham’s goal of“the greatest good
for the greatest number”be realized?
No—for two reasons,each sufficient by
itlf.The first is a theoretical one.It is not
mathematically possible to maximize for two
(or more)variables at the same time.This
was clearly stated by von Neumann and
Morgenstern(3),but the principle is implicit
in the theory of partial differential equations,
dating back at least to D’Alembert(1717–
1783).
The cond reason springs directly from
biological facts.To live,any organism
must have a source of energy(for example,
food).This energy is utilized for two pur-
pos:mere maintenance and work.For
man,maintenance of life requires about
1600kilocalories a day(“maintenance cal-
ories”).Anything that he does over and
above merely staying alive will be defined
as work,and is supported by“work calo-
ries”which he takes in.Work calories are
ud not only for what we call work in
common speech;they are also required for
all forms of enjoyment,from swimming
and automobile racing to playing music
and writing poetry.If our goal is to max-
imize population it is obvious what we
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must do:We must make the work calories
per person approach as clo to zero as
possible.No gourmet meals,no vacations,
no sports,no music,no literature,no art.
...I think that everyone will grant,with-
out argument or proof,that maximizing
population does not maximize goods.
Bentham’s goal is impossible.
In reaching this conclusion I have made
the usual assumption that it is the acquisi-
tion of energy that is the problem.The ap-
pearance of atomic energy has led some to
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question this assumption.However,given an
infinite source of energy,population growth
still produces an inescapable problem.The
problem of the acquisition of energy is re-
placed by the problem of its dissipation,as
J.H.Fremlin has so wittily shown(4).The
arithmetic signs in the analysis are,as it
were,reverd;but Bentham’s goal is still
unobtainable.
The optimum population is,then,less
than the maximum.The difficulty of defin-
ing the optimum is enormous;so far as I
know,no one has riously tackled this
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problem.Reaching an acceptable and stable
solution will surely require more than one
generation of hard analytical work—and
much persuasion.
We want the maximum good per person;
but what is good?To one person it is wil-
derness,to another it is ski lodges for thou-
sands.To one it is estuaries to nourish ducks
for hunters to shoot;to another it is factory
land.Comparing one good with another is,
we usually say,impossible becau goods are
incommensurable.Incommensurables can-
not be compared.
The author is professor of biology,University of California, Santa Barbara.This article is bad on a presidential address prented before the meeting of the Pacific Di-vision of the American Association for the Advancement of Science at Utah State University,Logan,25June 1968.
ARTICLE
Theoretically this may be true;but in real life incommensurables are commensurable. Only a criterion of judgment and a system of weighting are needed.In nature the criterion is survival.Is it better for a species to be small and hideable,or large and powerful?Natural lection commensurates the incommensu-rables.The compromi achieved depends on a natural weighting of the values of the variables.
Man must imitate this process.There is no doubt that in fact he already does,but unconsciously.It is when the hidden deci-sions are made explicit that the arguments begin.The problem for the years ahead is to work out an acceptable theory of weighting. Synergistic effects,nonlinear variation,and difficulties in discounting the future make the intellectual problem difficult,but not (in principle)insoluble.
Has any cultural group solved this prac-tical problem at the prent time,even on an intuitive level?One simple fact proves that none has:there is no prosperous population in the world today that has,and has had for some time,a growth rate of zero.Any people that has intuitively identified its optimum point will soon reach it,after which its growth rate becomes and remains zero.
Of cour,a positive growth rate might be taken as evidence that a population is below its optimum.However,by any rea-sonable standards,the most rapidly growing populations on earth today are(in general) the most mirable.This association(which need not be invariable)casts doubt on the optimistic assumption that the positive growth rate of a population is evidence that it has yet to reach its optimum.
We can make little progress in working toward optimum population size until we explicitly exorcize th
e spirit of Adam Smith in the field of practical demography.In economic affairs,The Wealth of Nations (1776)popularized the“invisible hand,”the idea that an individual who“intends only his own gain,”is,as it were,“led by an invisible hand he public interest”(5).Adam Smith did not asrt that this was invariably true,and perhaps neither did any of his followers.But he contributed to a dominant tendency of thought that has ever since interfered with positive action bad on rational analysis, namely,the tendency to assume that deci-sions reached individually will,in fact,be the best decisions for an entire society.If this assumption is correct it justifies the continuance of our prent policy of laisz-faire in reproduction.If it is correct we can assume that men will control their individ-ual fecundity so as to produce the optimum population.If the assumption is not correct, we need to reexamine our individual free-doms to e which ones are defensible.
Tragedy of Freedom in a
Commons
The rebuttal to the invisible hand in popu-
lation control is to be found in a scenario
first sketched in a little-known pamphlet(6)
in1833by a mathematical amateur named
William Forster Lloyd(1794–1852).We
may well call it“the tragedy of the com-
mons,”using the word“tragedy”as the phi-
losopher Whitehead ud it(7):“The es-
nce of dramatic tragedy is not unhappiness.
It resides in the solemnity of the remorless
working of things.”He then goes on to say,
“This inevitableness of destiny can only be
illustrated in terms of human life by inci-
dents which in fact involve unhappiness.For
it is only by them that the futility of escape
can be made evident in the drama.”
The tragedy of the commons develops in
this way.Picture a pasture open to all.It is
to be expected that each herdsman will try
to keep as many cattle as possible on the
commons.Such an arrangement may work
reasonably satisfactorily for centuries be-
cau tribal wars,poaching,and dia
keep the numbers of both man and beast
well below the carrying capacity of the land.
Finally,however,comes the day of reckon-
ing,that is,the day when the long-desired
goal of social stability becomes a reality.At
this point,the inherent logic of the com-
mons remorlessly generates tragedy.
As a rational being,each herdsman eks
to maximize his gain.Explicitly or implic-
itly,more or less consciously,he asks,
“What is the utility to me of adding one
more animal to my herd?”This utility has
one negative and one positive component.
1)The positive component is a function
of the increment of one animal.Since the
herdsman receives all the proceeds from the
sale of the additional animal,the positive
utility is nearlyϩ1.
2)The negative component is a func-
tion of the additional overgrazing created
by one more animal.Since,however,the
effects of overgrazing are shared by all the
herdsmen,the negative utility for any par-
ticular decision-making herdsman is only a
fraction ofϪ1.
Adding together the component partial
utilities,the rational herdsman concludes
that the only nsible cour for him to
pursue is to add another animal to his herd.
And another;But this is the
conclusion reached by each and every ratio-
nal herdsman sharing a commons.Therein is
the tragedy.Each man is locked into a sys-
tem that compels him to increa his herd
without limit—in a world that is limited.
Ruin is the destination toward which all
men rush,each pursuing his own best inter-
est in a society that believes in the freedom
of the commons.Freedom in a commons
brings ruin to all.
Some would say that this is a platitude.
Would that it were!In a n,it was
learned thousands of years ago,but natural
lection favors the forces of psychological
denial(8).The individual benefits as an
individual from his ability to deny the truth
even though society as a whole,of which he
is a part,suffers.
Education can counteract the natural
tendency to do the wrong thing,but the
inexorable succession of generations re-
quires that the basis for this knowledge be
constantly refreshed.
A simple incident that occurred a few
years ago in Leominster,Massachutts,
shows bow perishable the knowledge is.
During the Christmas shopping ason the
parking meters downtown were covered
with plastic bags that bore tags reading:“Do
not open until after Christmas.Free parking
courtesy of the mayor and city council.”In
other words,facing the prospect of an in-
cread demand for already scarce space.the
city fathers reinstituted the system of the
commons.(Cynically,we suspect that they
gained more votes than they lost by this
retrogressive act.)
In an approximate way,the logic of the
commons has been understood for a long
time,perhaps since the discovery of agricul-
ture or the invention of private property in
real estate.But it is understood mostly only
in special cas which are not sufficiently
generalized.Even at this late date,cattlemen
leasing national land on the western ranges
demonstrate no more than an ambivalent
understanding,in constantly pressuring fed-
eral authorities to increa the head count to
the point where overgrazing produces ero-
sion and weed-dominance.Likewi,the
oceans of the world continue to suffer from
the survival of the philosophy of the com-
mons.Maritime nations still respond auto-
matically to the shibboleth of the“freedom
of the as.”Professing to believe in the
“inexhaustible resources of the oceans,”they
bring species after species of fish and whales
clor to extinction(9).
The National Parks prent another in-
stance of the working out of the tragedy of
the commons.At prent,they are open to
all,without limit.The parks themlves are
limited in extent—there is only one Yo-
mite Valley—whereas population ems
to grow without limit.The values that vis-
itors ek in the parks are steadily eroded.
Plainly,we must soon cea to treat the
parks as commons or they will be of no
value to anyone.
What shall we do?We have veral op-
tions.We might ll them off as private
property.We might keep them as public
property,but allocate the right to enter
them.The allocation might be on the basis
of wealth,by the u of an auction system. It might be on the basis of merit,as defined by some agreed-upon standards.It might be by lottery.Or it might be on a first-come, first-rved basis,administered to long queues.The,I think,are all the reason-able possibilities.They are all objection-able.But we must choo—or acquiesce in the destruction of the commons that we call our National Parks.
Pollution
In a rever way,the tragedy of the commons reappears in problems of pollution.Here it is not a question of taking something out of the commons,but of putting something in—wage,or chemical,radioactive,and heat wastes into water;noxious and dangerous fumes into the air,and distracting and un-pleasant advertising signs into the line of sight.The calculations of utility are much the same as before.The rational man finds that his share of the cost of the wastes he discharges into
the commons is less than the cost of purifying his wastes before releasing them.Since this is true for everyone,we are locked into a system of“fouling our own nest,”so long as we behave only as indepen-dent,rational,free-enterprirs.
The tragedy of the commons as a food basket is averted by private property,or something formally like it.But the air and waters surrounding us cannot readily be fenced,and so the tragedy of the commons as a cesspool must be prevented by different means,by coercive laws or taxing devices that make it cheaper for the polluter to treat his pollutants than to discharge them un-treated.We have not progresd as far with the solution of this problem as we have with the first.Indeed,our particular concept of private property,which deters us from ex-hausting the positive resources of the earth, favors pollution.The owner of a factory on the bank of a stream—who property ex-tends to the middle of the stream,often has difficulty eing why it is not his natural right to muddy the waters flowing past his door.The law,always behind the times, requires elaborate stitching and fitting to adapt it to this newly perceived aspect of the commons.
The pollution problem is a conquence of population.It did not much matter how a lonely American frontiersman dispod of his waste.“Flowing water purifies itlf every10miles,”my grandfather ud to say,and the myth was near enough to the truth when he was a boy,for there were not too many pe
ople.But as population became denr,the natural chemical and biological recycling process became overloaded,calling for a redefinition of property rights.
How To Legislate Temperance?
Analysis of the pollution problem as a func-
tion of population density uncovers a not
generally recognized principle of morality,
namely:the morality of an act is a function of
the state of the system at the time it is performed
(10).Using the commons as a cesspool does
not harm the general public under frontier
conditions,becau there is no public,the
same behavior in a metropolis is unbearable.
A hundred and fifty years ago a plainsman
could kill an American bison,cut out only
the tongue for his dinner,and discard the
rest of the animal.He was not in any impor-
tant n being wasteful.Today,with only a
few thousand bison left,we would be ap-
palled at such behavior.
In passing,it is worth noting that the
morality of an act cannot be determined
from a photograph.One does not know
whether a man killing an elephant or t-
ting fire to the grassland is harming others
until one knows the total system in which
his act appears.“One picture is worth a
thousand words,”said an ancient Chine;
but it may take10,000words to validate it.
It is as tempting to ecologists as it is to
reformers in general to try to persuade
others by way of the photographic short-
cut.But the esn of an argument can-
not be photographed:it must be prented
rationally—in words.
That morality is system-nsitive es-
caped the attention of most codifiers of
ethics in the past.“Thou shalt not (i)
the form of traditional ethical directives
which make no allowance for particular
circumstances.The laws of our society fol-
low the pattern of ancient ethics,and there-
fore are poorly suited to governing a com-
plex,crowded,changeable world.Our epi-
cyclic solution is to augment statutory law
with administrative law.Since it is practi-
cally impossible to spell out all the condi-
tions under which it is safe to burn trash in
the back yard or to run an automobile with-
out smog-control,by law we delegate the
details to bureaus.The result is administra-
tive law,which is rightly feared for an an-
cient reason—Quis custodiet ipsos custo-
des?—“Who shall watch the watchers
themlves?”John Adams said that we must
have“a government of laws and not men.”
Bureau administrators,trying to evaluate
the morality of acts in the total system,are
singularly liable to corruption,producing a
government by men,not laws.
Prohibition is easy to legislate(though
not necessarily to enforce);but how do we
legislate temperance?Experience indicates
that it can be accomplished best through the
mediation of administrative law.We limit
possibilities unnecessarily if we suppo that
the ntiment of Quis custodiet denies us the
u of administrative law.We should rather
retain the phra as a perpetual reminder of
fearful dangers we cannot avoid.The great
challenge facing us now is to invent the
corrective feedbacks that are needed to keep
custodians honest.We must find ways to
legitimate the needed authority of both the
custodians and the corrective feedbacks.
Freedom To Breed Is Intolerable
The tragedy of the commons is involved in
population problems in another way.In a
world governed solely by the principle of
“dog eat dog”—if indeed there ever was such
a world—how many children a family had
would not be a matter of public concern.
Parents who bred too exuberantly would
leave fewer descendants,not more,becau
they would be unable to care adequately for
their children.David Lack and others have
found that such a negative feedback demon-
strably controls the fecundity of birds(11).
But men are not birds,and have not acted
like them for millenniums,at least.
If each human family were dependent
only on its own resources;if the children of
improvident parents starved to death;if,
thus,overbreeding brought its own“punish-
ment”to the germ line—then there would
be no public interest in controlling the
breeding of families.But our society is deep-
ly committed to the welfare state(12),and
hence is confronted with another aspect of
the tragedy of the commons.
In a welfare state,how shall we deal with
the family,the religion,the race,or the
class(or indeed any distinguishable and
cohesive group)that adopts overbreeding as
a policy to cure its own aggrandizement
(13)?To couple the concept of freedom to
breed with the belief that everyone born
has an equal right to the commons is to lock
the world into a tragic cour of action.
Unfortunately this is just the cour of
action that is being pursued by the United
Nations.In late1967,some30nations
agreed to the following(14):
The Universal Declaration of Human Rights
describes the family as the natural and funda-
mental unit of society.It follows that any choice
and decision with regard to the size of the family
must irrevocably rest with the family itlf,and
cannot be made by anyone el.
It is painful to have to deny categorically
the validity of this right;denying it,one feels
as uncomfortable as a resident of Salem,
Massachutts,who denied the reality of
witches in the17th century.At the prent
time,in liberal quarters,something like a
taboo acts to inhibit criticism of the United
Nations.There is a feeling that the United
Nations is“our last and best hope,”that we
shouldn’t find fault with it;we shouldn’t play
into the hands of the archconrvatives. However,let us not forget what Robert Louis Stevenson said:“The truth that is suppresd by friends is the readiest weapon of the en-emy.”If we love the truth we must openly deny the validity of the Universal Declara-tion of Human Rights,even though it is promoted by the United Nations.We should also join with Kingsley Davis(15)in at-tempting to get Planned Parenthood-World Population to e the error of its ways in embracing the same tragic ideal. Conscience Is Self-Eliminating It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.Charles Galton Darwin made this point when he spoke on the centennial of the publication of his grandfather’s great book.The argument is straightfor
ward and Darwinian.
People vary.Confronted with appeals to limit breeding,some people will undoubt-edly respond to the plea more than others. Tho who have more children will produce a larger fraction of the next generation than tho with more susceptible consciences. The difference will be accentuated,gener-ation by generation.
In C.G.Darwin’s words:“It may well be that it would take hundreds of generations for the progenitive instinct to develop in this way,but if it should do so,nature would have taken her revenge,and the variety Homo contracipiens would become extinct and would be replaced by the variety Homo progenitivus”(16).
The argument assumes that conscience or the desire for children(no matter which) is hereditary—but hereditary only in the most general formal n.The result will be the same whether the attitude is trans-mitted through germ cells,or exosomati-cally,to u A.J.Lotka’s term.(If one denies the latter possibility as well as the former,then what’s the point of education?) The argument has here been stated in the context of the population problem,but it applies equally well to any instance in which society appeals to an individual ex-ploiting a commons to restrain himlf for the general good—
by means of his con-science.To make such an appeal is to t up a lective system that works toward the elimination of conscience from the race.
Pathogenic Effects of
Conscience
The long-term disadvantage of an appeal to conscience should be enough to condemn it; but has rious short-term disadvantages as well.If we ask a man who is exploiting a commons to desist“in the name of con-science,”what are we saying to him?What
does he hear?—not only at the moment but
also in the wee small hours of the night
when,half asleep,he remembers not merely
the words we ud but also the nonverbal
communication cues we gave him unawares?
Sooner or later,consciously or subconscious-
ly,he ns that he has received two com-
munications,and that they are contradicto-
ry:(i)(intended communication)“If you
don’t do as we ask,we will openly condemn
you for not acting like a responsible citizen”;
(ii)(the unintended communication)“If you
do behave as we ask,we will cretly con-
demn you for a simpleton who can be
shamed into standing aside while the rest of
us exploit the commons.”
Everyman then is caught in what Bate-
son has called a“double bind.”Bateson and
his co-workers have made a plausible ca
for viewing the double bind as an important
causative factor in the genesis of schizo-
phrenia(17).The double bind may not
always be so damaging,but it always endan-
gers the mental health of anyone to whom
it is applied.“A bad conscience,”said
Nietzsche,“is a kind of illness.”
To conjure up a conscience in others is
tempting to anyone who wishes to extend
his control beyond the legal limits.Leaders
at the highest level succumb to this temp-
tation.Has any President during the past
generation failed to call on labor unions to
moderate voluntarily their demands for
higher wages,or to steel companies to hon-
or voluntary guidelines on prices?I can
recall none.The rhetoric ud on such oc-
casions is designed to produce feelings of
guilt in noncooperators.
For centuries it was assumed without
proof that guilt was a valuable,perhaps
even an indispensable,ingredient of the
civilized life.Now,in this post-Freudian
world,we doubt it.
Paul Goodman speaks from the modern
point of view when he says:“No good has
ever come from feeling guilty,neither intel-
ligence,policy,nor compassion.The guilty
do not pay attention to the object but only
to themlves,and not even to their own
interests,which might make n,but to
their anxieties”(18).
One does not have to be a professional
psychiatrist to e the conquences of anx-
iety.We in the Western world are just
emerging from a dreadful two-centuries-
long Dark Ages of Eros that was sustained
partly by prohibition laws,but perhaps more
effectively by the anxiety-generating mech-
anism of education.Alex Comfort has told
the story well in The Anxiety Makers(19);it
is not a pretty one.
Since proof is difficult,we may even
concede that the results of anxiety may
sometimes,from certain points of view,be
desirable.The larger question we should ask
is whether,as a matter of policy,we should
ever encourage the u of a technique the
tendency(if not the intention)of which is
psychologically pathogenic.We hear much
talk the days of responsible parenthood;
the coupled words are incorporated into the
titles of some organizations devoted to birth
control.Some people have propod mas-
sive propaganda campaigns to instill re-
sponsibility into the nation’s(or the
world’s)breeders.But what is the meaning
of the word responsibility in this context?Is
it not merely a synonym for the word con-
science?When we u the word responsi-
bility in the abnce of substantial sanctions
are we not trying to browbeat a free man in
a commons into acting against his own
interest?Responsibility is a verbal counter-
feit for a substantial quid pro quo.It is an
attempt to get something for nothing.
If the word responsibility is to be ud
at all,I suggest that it be in the n
Charles Frankel us it(20).“Responsibil-
ity,”says this philosopher,“is the product
of definite social arrangements.”Notice
that Frankel calls for social arrange-
ments—not propaganda.
Mutual Coercion
Mutually Agreed upon
The social arrangements that produce re-
sponsibility are arrangements that create
coercion,of some sort.Consider bank-rob-
bing.The man who takes money from a
bank acts as if the bank were a commons.
How do we prevent such action?Certainly
not by trying to control his behavior solely
血小板减少会有什么后果by a verbal appeal to his n of responsi-
bility.Rather than rely on propaganda we
follow Frankel’s lead and insist that a bank
is not a commons;we ek the definite
social arrangements that will keep it from
becoming a commons.That we thereby in-
fringe on the freedom of would-be robbers
we neither deny nor regret.
The morality of bank-robbing is particu-
larly easy to understand becau we accept
complete prohibition of this activity.We are
willing to say“Thou shalt not rob banks,”
without providing for exceptions.But tem-
perance also can be created by coercion.
Taxing is a good coercive device.To keep
downtown shoppers temperate in their u of
parking space we introduce parking meters
for short periods,and traffic fines for longer
ones.We need not actually forbid a citizen
to park as long as he wants to;we need
merely make it increasingly expensive for
him to do so.Not prohibition,but carefully
biad options are what we offer him.A
Madison Avenue man might call this per-
suasion;I prefer the greater candor of the
word coercion.
Coercion is a dirty word to most liberals now,but it need not forever be so.As with the four-letter words,its dirtiness can be cleand away by exposure to the light,by saying it over and over without apology or embarrassment.To many,the word coer-cion implies arbitrary decisions of distant and irresponsible bureaucrats;but this is not a necessary part of its meaning.The only kind of coercion I recommend is mutual coercion,mutually agreed upon by the ma-jority of the people affected.
To say that we mutually agree to coercion is not to say that we are required to enjoy it, or even to pretend we enjoy it.Who enjoys taxes?We all grumble about them.But we accept compulsory taxes becau we recog-nize that voluntary taxes would favor the conscienceless.We institute and(grumbling-ly)support taxes and other coercive devices to escape the horror of the commons.
An alternative to the commons need not be perfectly just to be preferable.With real estate and other material goods,the alterna-tive we have chon is the institution of private property coupled with legal inheri-tance.Is this system perfectly just?As a genetically trained biologist I deny that it is. It ems to me that,if there are to be differ-ences in individual inheritance,legal poss-sion should be perfectly correlated with bio-logical inheritance—that tho who are bi-ologically more fit to be the cu
stodians of property and power should legally inherit more.But genetic recombination continual-ly makes a mockery of the doctrine of“like father,like son”implicit in our laws of legal inheritance.An idiot can inherit millions, and a trust fund can keep his estate intact. We must admit that our legal system of private property plus inheritance is unjust—but we put up with it becau we are not convinced,at the moment,that anyone has invented a better system.The alternative of the commons is too horrifying to contem-plate.Injustice is preferable to total ruin.
It is one of the peculiarities of the warfare between reform and the status quo that it is thoughtlessly governed by a double standard. Whenever a reform measure is propod it is often defeated when its opponents trium-phantly discover a flaw in it.As Kingsley Davis has pointed out(21),worshippers of the status quo sometimes imply that no re-form is possible without unanimous agree-ment,an implication contrary to historical fact.As nearly as I can make out,automatic rejection of propod reforms is bad on one of two unconscious assumptions:(i)that the status quo is perfect;or(ii)that the choice we face is between reform and no action;if the propod reform is imperfect,we presum-ably should take no action at all,while we wait for a perfect proposal.
But we can never do nothing.That
which we have done for thousands of years
is also action.It also produces evils.Once
we are aware that the status quo is action,
we can then compare its discoverable ad-
vantages and disadvantages with the pre-
dicted advantages and disadvantages of the
propod reform,discounting as best we can
for our lack of experience.On the basis of
such a comparison,we can make a rational
decision which will not involve the un-
workable assumption that only perfect sys-
小米手机找回tems are tolerable.
Recognition of Necessity
Perhaps the simplest summary of this anal-
ysis of man’s population problems is this:
the commons,if justifiable at all,is justifi-
able only under conditions of low-popula-
tion density.As the human population has
incread,the commons has had to be aban-
doned in one aspect after another.
First we abandoned the commons in
food gathering,enclosing farm land and
restricting pastures and hunting and fishing
areas.The restrictions are still not com-
plete throughout the world.
Somewhat later we saw that the com-
mons as a place for waste disposal would
also have to be abandoned.Restrictions on
the disposal of domestic wage are widely
accepted in the Western world;we are still
struggling to clo the commons to pollu-
tion by automobiles,factories,incticide
sprayers,fertilizing operations,and atomic
energy installations.
In a still more embryonic state is our
recognition of the evils of the commons in
matters of pleasure.There is almost no re-
striction on the propagation of sound waves
in the public medium.The shopping public
is assaulted with mindless music,without its
connt.Our government is paying out bil-
lions of dollars to create supersonic trans-
port which will disturb50,000people for
every one person who is whisked from coast
to coast3hours faster.Advertirs muddy
the airwaves of radio and television and
pollute the view of travelers.We are a long
way from outlawing the commons in mat-
ters of pleasure.Is this becau our Puritan
inheritance makes us view pleasure as some-
thing of a sin,and pain(that is,the pollu-
tion of advertising)as the sign of virtue?
Every new enclosure of the commons in-
volves the infringement of somebody’s per-
sonal liberty.Infringements made in the dis-
tant past are accepted becau no contem-
porary complains of a loss.It is the newly
propod infringements that we vigorously
oppo;cries of“rights”and“freedom”fill
the air.But what does“freedom”mean?
When men mutually agreed to pass laws
against robbing,mankind became more free,
not less so.Individuals locked into the logic
of the commons are free only to bring on
universal ruin once they e the necessity of
mutual coercion,they become free to pursue
other goals.I believe it was Hegel who said,
“Freedom is the recognition of necessity.”
The most important aspect of necessity
that we must now recognize,is the necessity
of abandoning the commons in breeding.
No technical solution can rescue us from
the miry of overpopulation.Freedom to
breed will bring ruin to all.At the moment,
to avoid hard decisions many of us are
tempted to propagandize for conscience and
responsible parenthood.The temptation
must be resisted,becau an appeal to inde-
pendently acting consciences lects for the
disappearance of all conscience in the long
run,and an increa in anxiety in the short.
The only way we can prerve and nur-
ture other and more precious freedoms is by
relinquishing the freedom to breed,and
that very soon.“Freedom is the recognition
of necessity”—and it is the role of educa-
tion to reveal to all the necessity of aban-
doning the freedom to breed.Only so,can
we put an end to this aspect of the tragedy
of the commons.
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