媒介环境学的人文主义

媒介环境学的人文主义
媒介环境学的人文主义

10Proceedings of the Media Ecology Association, Volume 1, 2000

The Humanism of Media Ecology

Keynote Address Delivered at the Inaugural Media Ecology Association Convention

Fordham University, New York, New York

June 16–17, 2000

Neil Postman 1

AM , of course, honored to have been asked to give the keynote address at the first convention

of the Media Ecology Association. I must assume I have been judged an appropriate person to do this, not merely an available one, and I thank the organizers for that. But what is ap-propriate is not always the best. Jacques Ellul would have been much better, but he is dead, and even worse, spoke French. McLuhan is dead. So are Eric Havelock and Susanne Langer. I don’t mean to compare myself to these great scholars. They are, after all, the Abraham, Moses, David,and Esther of media ecology, which is not to say that they were Jewish, but to say that their work gave form to the fundamental questions of media ecology. I know they are here in spirit,but if any one of them could have stayed long enough to be here this evening, it would have been the best possible start for the association. I should add here, on the question of who would be best to give this address, that there are a half dozen or more young people, some of whom are graduates of the Media Ecology Program at NYU and some of whom are not, who have taken the idea of media ecology farther than I have and who, without much argument, could do a better job than I.

Nonetheless, I am not a bad choice, because along with Christine Nystrom and Terence Moran I helped to organize the first graduate program on the planet that chose the phrase “Me-dia Ecology” to signify a university course of study. And so I should like to begin by saying what we meant by using that term, and I do this without the intention of imposing our meaning on you.

OU may be surprised to know that our first thinking about the subject was guided by a

biological metaphor. You will remember from the time when you first became acquainted with a Petri dish, that a medium was defined as a substance within which a culture grows. If you replace the word “substance” with the word “technology,” the definition would stand as a fundamental principle of media ecology: A medium is a technology within which a cul-ture grows; that is to say, it gives form to a culture’s politics, social organization, and habitual ways of thinking. Beginning with that idea, we invoked still another biological metaphor, that of ecology. In its origin the word had a considerably different meaning from how we use it today.As found in Aristotle, it meant “household.” He spoke of the importance to our intellectual equanimity of keeping our household in order. Its first use in its modern meaning is attributed to Ernst Haeckel, a German zoologist, in the late 19th century. He used the word as we do now, to 1 Neil Postman is University Professor and Paulette Goddard Professor of Media Ecology in the Department of Cul-ture and Communication of The Steinhardt School of Education, New York University, East Building, 239 Greene St, 7th Floor, New York, NY 10003.

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The Humanism of Media Ecology11 refer to the interactions among the elements of our natural environment, with a special emphasis on how such interactions lead to a balanced and healthful environment. We put the word “media”in the front of the word “ecology” to suggest that we were not simply interested in media, but in the ways in which the interaction between media and human beings give a culture its character and, one might say, help a culture to maintain symbolic balance. If we wish to connect the ancient meaning with the modern, we might say that the word suggests that we need to keep our plane-tary household in order.

In the early days of our department, we were subjected to a good deal of derision, some gentle and some nasty, about our use of the phrase “media ecology.” I think the objection was that the term was too trendy, but more than that, the term was more comfortable in biology than in social studies and ought to remain there. But from our point of view, we had chosen the right phrase, since we wanted to make people more conscious of the fact that human beings live in two differ-ent kinds of environments. One is the natural environment and consists of things like air, trees, rivers, and caterpillars. The other is the media environment, which consists of language, numbers, images, holograms, and all of the other symbols, techniques, and machinery that make us what we are.

From the beginning, we were a group of moralists. It was our idea to have an academic de-partment that would focus its attention on the media environment, with a particular interest in understanding how and if our media ecology was making us better or worse. Not everyone thought that this was a good idea—Marshall McLuhan, for one. Although McLuhan had sug-gested that we start such a department at NYU, he did not have in mind that we ought to interest ourselves in whether or not new media, especially electronic media, would make us better or worse. He reminded me several times of the lines in Stephen Vincent Benét’s long poem John Brown’s Body. At the end of the poem, Benét makes reference to the Industrial Revolution and finishes with these lines:

Say neither, it is blessed nor cursed.

Say only “It is here.”

No room for moralists there. McLuhan claimed that we ought to take the same point of view in thinking about modern media: that they are neither blessed nor cursed, only that they are here. He thought that this moral neutrality would give the best opportunity to learn exactly how new me-dia do their stuff. If one spent too much time on the question of whether or not that stuff was good, one would be distracted from truly understanding media. As a consequence, although I be-lieve McLuhan liked me, I feel sure he would not have much liked my books, which he would have thought too moralistic, rabbinical or, if not that, certainly too judgmental.

I think there is considerable merit in McLuhan’s point of view about avoiding questions of good and bad when thinking about media. But that view has never been mine. To be quite honest about it, I don’t see any point in studying media unless one does so within a moral or ethical con-text. I am not alone in believing this. Some of the most important media scholars—Lewis Mum-ford and Jacques Ellul, for example—could scarcely write a word about technology without con-veying a sense of either its humanistic or anti-humanistic consequences. And it is that issue that I should like to address for the remainder of my talk.

12Neil Postman

I

N thinking about media from a humanistic point of view, one must take into account the obvi-ous fact that people will have different ideas about what is good for them and bad for them.

This year, we are celebrating the 600th anniversary of the birth of Johannes Gutenberg. I suppose we can all agree, in the year 2000, that his printing press with movable type was, all things considered, a good thing, that is to say, a humane advance in the history of communication. But people did not agree about that in the early days of its invention, especially because of the role it played in the breakup of the Holy Roman Church. The press put the Word of God on every Christian’s kitchen table. That being the case, who needs Popes and priests to interpret it? Which is why Martin Luther said of the printing press that it was “God’s highest grace by which the gospel is driven forward.” It would have been difficult to find, in the 16th century, any de-voted member of the Church to agree with that judgment. We might say that it took 200 years before the quarrel between Catholics and Protestants—a quarrel incited by print—subsided.

Which leads to another point: In assessing the humanistic consequences of a new medium, one must take into account the factor of time. I think some of you know that among the severely negative consequences of television—at least as I see them—is its role in making the institution of childhood obsolete. I would call that a moral decline. Of course, there are some people, espe-cially merchants, who think that the disappearance of childhood is a good idea. But even those, like me, who think it is a catastrophe have to keep in mind that 100 years from now, it may not seem so. In fact, people might believe that the idea of childhood was no great advantage, at any time, either to the young or to the old, and the sooner television wrecked it the better.

And so we must keep in mind, first, that people differ about what is good for them and what isn’t, and second, that changes over time will make us see things differently from the way they might have first appeared. In keeping these factors in mind, is one taking the position of a moral relativist? Not necessarily. It is possible, for example, to say that when people have differed over the moral implications of a new medium, one group was wrong. And I think it also possible to say that although time may change the way people judge the effects of a new medium, time can be wrong. I mean, let us say, that the negative effects of a medium might still be a problem and remain one in spite of the passage of time. In other words, time does not always erase the disad-vantages of a medium. Neither does it necessarily weaken the advantages.

A good example of this is to be found in the prophecies made by Socrates about the written word. I think most of you know that in the Ph?drus he spoke against writing on the grounds that it would weaken our memories, make public those things that are best left private, and change the practice of education. Writing, he said, forces a student to follow an argument rather than to par-ticipate in it. I should say that the passage of 2,500 years has not changed those negative conse-quences. I should add that the positive consequences that Plato saw are also still perfectly evi-dent.

I might offer, as another example, an even more ancient prophecy concerning media. I remind you of the implied prophecy in the Second Commandment of the Decalogue. It is the command-ment that forbids Israelites to make graven images or any likenesses of anything in the world. I take it that the author of that prohibition believed that the making of concrete, visual images would weaken the capacity of people to conceive of abstract ideas, specifically a God that has no material existence but exists only in the Word and through the Word. That idea about a medium’s effect on human psychology is as certain today as it was three thousand years ago.

The Humanism of Media Ecology13 What I am leading up to is that while we must keep in mind that not all people agree on what is an advantage or a disadvantage, and that time might alter our judgment of the effects of a me-dium, one can still take a definite view about whether or not a medium contributes to or under-mines humane concepts. Which leads me to say something about what one might mean by a hu-mane concept. Let us start with McLuhan and Harold Innis. As most of you know, both McLu-han, who often denied it, and Harold Innis, who never denied it, had a definite idea about what was good for people in relation to media. McLuhan thought that it was better for people if the media they used promoted a balance in their sensorium. Innis believed that it was better for peo-ple if their media promoted a balance in people’s conceptions of time and space. The only time I know of that McLuhan used the phrase “media ecology” is in a letter he wrote to Clare Booth Luce, in which he remarked that it may be necessary for a culture to limit its use of some medium in the interests of promoting a balance in the media ecology. For his part, Innis worried that a medium that emphasizes space over time is likely to make a culture obsessed with military con-quest. In other words, there is in fact a moral dimension to the way in which both of them as-sessed media and media change.

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HAT, then, do I think are the humanistic issues one ought to consider in trying to un-

derstand media? I should like to offer some in the form of a series of questions, and

when I am done you will have, I hope, an idea of what I regard as humane progress.

The first question is this: To what extent does a medium contribute to the uses and develop-ment of rational thought?

The question suggests that I believe that rational thinking is one of humanity’s greatest gifts, and that, therefore, any medium that encourages it, such as writing or print, is to be praised and highly valued. And any medium that does not, such as television, is to be feared. This is not to say that writing or print do not have disadvantages, and television, advantages—only that in this important sphere of humanity’s development we have a clear case of one medium that assists it and of another that undermines it. I am prepared to go quite far on this matter. For example, I would remind you that all the people who helped to create the electric world—from telegraphy to the Internet—were themselves educated almost exclusively by the written and printed word: that is, by pen, paper, and books. How did they get so smart? Well, you know my answer: Their intellectual powers were developed by a medium that fostered abstract thought. If you want any elaboration of this view, I suggest you begin by reading about the 18th century. It was then that most of the humane ideas we have carried forward were conceived: religious freedom, free speech, inductive science, women’s rights, childhood, an abomination of slavery, the right of the governed to choose their governors, even the idea of progress, and, you might be surprised to know, the idea of happiness. We owe these ideas to rationalism—a way of thinking fostered by print. David Riesman once said of print, it is the gunpowder of the mind. We need have no fear that we are in danger of having too much of it.

Here is a second question: To what extent does a medium contribute to the development of democratic processes?

There is no question that the printed word was a key factor in the emergence of democracy, not least because it undermined the oral tradition and placed great emphasis on individuality. In Democracy in America, de Tocqueville worried that the printed word would lead Americans

14Neil Postman

away from a sense of community and toward what he called egotism. De Tocqueville could not know of radio, television, or the Internet, but if he could, I’m sure he would ask of them, Do they help maintain a balance between a sense of social cohesion and individuality, both of which are necessary to a humane democracy? I do not think he would be impressed by media whose for-mats encourage isolation. After all, we can listen to music alone, watch television alone, watch videos alone. And now with the aid of computers, we can shop at home, we will be voting at home, and going to college at home—that is to say, alone. Of course, we also read alone, which fact was, as I mentioned, an important element in the development of individualism, but the im-balance fostered by new media creates a problem that will have an important effect on our under-standing and practice of democracy.

A couple of years ago, Lawrence Grossman wrote a book called The Electronic Republic in which he enthusiastically predicted that in the future, representative democracy would be re-placed by what he called participatory democracy. He meant by this that digital technologies would make it possible for plebiscites to be conducted every week; that is to say, citizens would be able to vote on whether or not we should send troops to Bosnia, impeach the President, or change the Social Security system. The Senate and Congress would become largely unnecessary. In other words, we become faceless citizens voting alone on issues we do not have the time or place to discuss. My only comment on this possibility is that Madison, Jefferson, and Washing-ton would have left the country if such a system were employed.

A third question—related to the previous two—is, To what extent do new media give greater access to meaningful information?

In the 19th century, we clearly suffered from the problem of information scarcity. In the 1830s information could travel only as fast as a human being, which was about 35 miles per hour on a fast train. And so, we addressed the question, How can we get more information, to more people, faster, and in diverse forms? We started to solve this problem with the invention of tele-graphy and photography in the late 1830s and early 1840s. Not everyone was enthusiastic about the early attempts to solve that problem. Henry David Thoreau remarked in Walden, We are in great haste to construct a magnetic telegraph from Maine to Texas; but

Maine and Texas, it may be, have nothing important to communicate. …We are

eager to tunnel under the Atlantic and bring the old world some weeks nearer to

the new; but perchance the first news that will leak through into the broad, flap-

ping American ear will be that the Princess Adelaide has the whooping cough. Nonetheless, the issue of what is significant or useful information was not much discussed, and for 170 years we have been obsessed with machinery that would give access, and give it fast, to a Niagara of information.

Obviously, the Internet does that and we must give all due praise for its efficiency. But it does not help us, neither does television or any other 19th- or 20th-century medium (except per-haps the telephone), to solve the problem of what is significant information. As far as I can tell, the new media have made us into a nation of information junkies; that is to say, our 170-year ef-forts have turned information into a form of garbage. My own answer to the question concerning access to information is that, at least for now, the speed, volume, and variety of available infor-

The Humanism of Media Ecology15 mation serve as a distraction and a moral deficit; we are deluded into thinking that the serious so-cial problems of our time would be solved if only we had more information, and still more infor-mation. But I hope I need not tell you that if children are starving in the world, and many are, it is not because we have insufficient information. If crime is rampant in the streets, it is not because we have insufficient information. If children are abused and women battered, that, too, has noth-ing to do with insufficient information. The solutions to those problems lie elsewhere, and Bill Gates and Nicholas Negroponte have not yet noticed that, and it is not likely that they will.

Here is a final question: To what extent do new media enhance or diminish our moral sense, our capacity for goodness?

I know that this question will strike some of you as strange, or perhaps unanswerable. It is, in any case, not the sort of question that is of interest to technologically oriented people, or even the professors of technologically oriented people. And yet, it is a version of the question asked by Jean-Jacques Rousseau in an essay he published in 1749. The essay made him famous, and even better, opened the way to the point of view we now call Romanticism. Rousseau asked if scientific progress contributed to the corruption or purification of morality. I retrieve the ques-tion because it was asked at a moment, not unlike ours, when there were great scientific and tech-nological advances, when there was great enthusiasm for inventions of all kinds, when there ex-isted, prominently, the belief that technological innovation was the same thing as humane pro-gress. In his essay, Rousseau ridiculed the so-called advances of civilization, claiming that such advances lead to materialism and atheism, which he thought demeaning to the human spirit. Rousseau placed himself on the side of religion and spirituality, as did so many of the great Ro-mantic poets who followed in his path: Wordsworth, Keats, Blake, Coleridge, Byron, Heine, Baudelaire, and most of all, Percy Shelley, who argued that because science and technology pro-ceed without a moral basis, they do not make the mind receptive to moral decency. He thought, of course, that poetry did. “The great instrument of moral good,” he wrote, “is the imagination, and poetry administers to the effect by acting on the cause.”

I

DON’T say that I see as clearly as Shelley what are the instruments of moral good, or the in-struments of moral evil or even moral indifference. But it seems to me that those of us who are interested in media ecology ought to give more time than we do in addressing the role me-dia play in, as Rousseau put it, corrupting or purifying our morality. After all, no one can dispute that in the 20th century more advances were made in technology than in all the previous centuries put together. How, then, can we account for the fact that more people were slaughtered in the 20th century, including as many as ten million children, by wars and mayhem than in all the pre-vious centuries? How can we account for the fact that the three most influential ideologies of the 20th century were Nazism, Fascism, and Communism, each of which reduced the significance of the human spirit so that people fled from them whenever they could? Is it not possible that be-hind the noon-day brightness of technological ingenuity there lurks something dark and sinister, something that casts a terrible shadow over the better angels of our nature?

Esther Dyson, who is one of the more prominent cheerleaders for technological growth, re-marks in her recent book that those who worry too much about the electronic world can rest easy in the assurance that human nature will remain the same. Not surprisingly, she misses the point. Human nature may stay the same. But it is part of human nature to hate and kill, and it is part of

16Neil Postman

human nature to love and protect. The question is, what part will be released and nurtured? What part will be suppressed and shriveled? And, of course, is there any connection between our ob-session with our technology and our capacity for moral growth? This last question is what Rous-seau, Shelley, Blake, Carlyle, and Huxley thought and wrote about. Do we?

It seems to me that there is something shallow, brittle, and even profoundly irrelevant about Departments of Communication that ignore these questions, that are concerned to produce tech-nological cheerleaders, and even neutralists who offer little historical or philosophical moral per-spectives. What I mean to say, I suppose, is that media ecology is properly a branch of the hu-manities.

Well, there are, of course, many other questions to ask on the general subject of media and humanistic advance. You will notice I have said nothing about the question of the contribution of media to the growth of artistic expression, and not very much about whether or not media en-hance or diminish the quality of human interactions; neither did I say anything about the extent to which new media encourage or discourage an interest in historical experience. These are important questions, and I hope there are those among you who are interested to ask them and to try to an-swer them.

Let me conclude, then, by saying that as I understand the whole point of media ecology, it exists to further our insights into how we stand as human beings, how we are doing morally in the journey we are taking. There may be some of you who think of yourselves as media ecologists who disagree with what I have just said. If that is the case, you are wrong.

建筑环境学课后习题参考答案

建筑环境学课后习题答案 第二章 1.为什么我国北方住宅严格遵守坐南朝北的原则,而南方(尤其是华南地区)住宅并不严格遵守此原则? 答:我国分为严寒、寒冷、夏热冬冷和暖和地区,居住建筑一般总是希望夏季避免日晒,而冬季又能获得较多光照,我国北方多是严寒和寒冷地区,建筑设计时,必须充分满足冬季保暖要求,部分地区兼顾夏季防热,北部地区坐北朝南能够达到充分利用阳光日照采暖,能够减少建筑的采暖负荷,减少建筑采暖能耗,所以,我国北方住宅严格遵守坐北朝南的原则,而南方地区必须满足夏季防晒要求适当兼顾冬季保暖,所以南方住宅可以不遵守原则。 2.是空气温度的改变导致地面温度改变,还是地面温度的改变导致空气温度改变? 答:互相影响的,主要是地面温度的改变对空气温度变化起主要作用,空气温度的改变一定程度上也会导致地面温度改变,因为大气中的气体分子在吸收和放射辐射时是有选择的,对太阳辐射几乎是透明体,只能吸收地面的长波辐射,因此,地面与空气的热量交换是气温上升的直接原因。 3.为什么晴朗天气的凌晨书页表面容易结露或结霜? 答:晴朗天空的凌晨,温度较低,云层较薄,尘埃,微小水珠,气体分子较大,太阳辐射较小,树叶主要向天空辐射长波辐射,树叶温度低于露点温度,树叶表面容易结露或结霜。

5.采用低反射率的下垫面对城市热岛有不好的影响。如果住宅小区采用高反射率的地面铺装是否能够改善住区微气候?为什么? 答:其效果不是很好,由于城市建筑的密集,植被少采用高反射率的地面铺装,虽然减少了地面对辐射的吸收,但其反射出去的辐射仍会被建筑群所吸收,另外,由于逆温层的存在,其可能会导致空气温度的升高,从而不利于住区微气候的改善。 6.水体和植被对热岛现象起什么作用?机理是多少? 答:①由于城市地面覆盖物多,发热体多,加上密集的城市人口的生活和生产中产生大量的人为热,造成市中心的温度高于郊区温度,且室内各区的温度分布也不一样。如果绘制出等温曲线,就会看到与岛屿的等高线极为相似,人们把这种气温分布的现象称为“热岛现象”。而水体和植被具有调节城市局部气候的作用,如净化空气、减少噪声,对城市“热岛现象”有一定的缓解作用。②机理:水体的比热大,温度较高时,气体潜热带走辐射热量,有效地降低温度,植被蒸腾作用较强,能有效带走部分热量,此外,植被的光合作用能吸收CO2,放出O2,杀菌并能吸收粉尘,有效地抑制了温室效应进而降低温度,也就有效地抑制了热岛效应。 第三章 1.室外空气综合温度是单独由气象参数决定的么? 答:室外空气综合温度并不是由气象单独决定的,所谓室外

媒介环境学的人文主义

10Proceedings of the Media Ecology Association, Volume 1, 2000 The Humanism of Media Ecology Keynote Address Delivered at the Inaugural Media Ecology Association Convention Fordham University, New York, New York June 16–17, 2000 Neil Postman 1 AM , of course, honored to have been asked to give the keynote address at the first convention of the Media Ecology Association. I must assume I have been judged an appropriate person to do this, not merely an available one, and I thank the organizers for that. But what is ap-propriate is not always the best. Jacques Ellul would have been much better, but he is dead, and even worse, spoke French. McLuhan is dead. So are Eric Havelock and Susanne Langer. I don’t mean to compare myself to these great scholars. They are, after all, the Abraham, Moses, David,and Esther of media ecology, which is not to say that they were Jewish, but to say that their work gave form to the fundamental questions of media ecology. I know they are here in spirit,but if any one of them could have stayed long enough to be here this evening, it would have been the best possible start for the association. I should add here, on the question of who would be best to give this address, that there are a half dozen or more young people, some of whom are graduates of the Media Ecology Program at NYU and some of whom are not, who have taken the idea of media ecology farther than I have and who, without much argument, could do a better job than I. Nonetheless, I am not a bad choice, because along with Christine Nystrom and Terence Moran I helped to organize the first graduate program on the planet that chose the phrase “Me-dia Ecology” to signify a university course of study. And so I should like to begin by saying what we meant by using that term, and I do this without the intention of imposing our meaning on you. OU may be surprised to know that our first thinking about the subject was guided by a biological metaphor. You will remember from the time when you first became acquainted with a Petri dish, that a medium was defined as a substance within which a culture grows. If you replace the word “substance” with the word “technology,” the definition would stand as a fundamental principle of media ecology: A medium is a technology within which a cul-ture grows; that is to say, it gives form to a culture’s politics, social organization, and habitual ways of thinking. Beginning with that idea, we invoked still another biological metaphor, that of ecology. In its origin the word had a considerably different meaning from how we use it today.As found in Aristotle, it meant “household.” He spoke of the importance to our intellectual equanimity of keeping our household in order. Its first use in its modern meaning is attributed to Ernst Haeckel, a German zoologist, in the late 19th century. He used the word as we do now, to 1 Neil Postman is University Professor and Paulette Goddard Professor of Media Ecology in the Department of Cul-ture and Communication of The Steinhardt School of Education, New York University, East Building, 239 Greene St, 7th Floor, New York, NY 10003. I Y

环境学复习试题及答案范文

一 、名词解释 1. 生态平衡 2. 水环境容量 3. 污染集中控制制度 4. 清洁生产 5. 二次污染物 二、简答题 1. 着名的“八大公害事件”是什么?指出每一公害事件的 主要污染物? 2. 根据处理目的划分,固体废物处理方法有哪些?请分别列举几种典型的方法。 3. 海洋污染有哪些特点? 4. 简述我国目前环境保护基本政策体系。 5. 环境中的致病因素有哪些? 6. 中国环境管理的八项制度 三、论述题 1. 论述实现清洁生产的途径。 2.简述生物多样性的意义、生物多样性锐减的原因和危害, 及其防防治对策。 一、名词解释 1. 生态平衡 生态系统中,通过生物链和其它自然因素来维系的一种平衡状态。也就是说系统的能量流动和物质循环能较长期地保持稳定的平衡状态。 2. 水环境容量 一定水体所能容纳污染物的最大负荷被称为水环境容量,即某水域所能承担外加的某种污染物的最大允许负荷量。 3. 污染集中控制制度:污染集中控制是在一个特定的范围内,为保护环境所建立的集中治理设施和采用的管理措施,是强化管理的一种重要手段

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