Zitate von Benoît Mandelbrot

Benoît Mandelbrot Foto
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Benoît Mandelbrot

Geburtstag: 20. November 1924
Todesdatum: 14. Oktober 2010

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Benoît B. Mandelbrot war ein französisch-US-amerikanischer Mathematiker.

Mandelbrot leistete Beiträge zu einem breiten Spektrum mathematischer Probleme, einschließlich der theoretischen Physik, der Finanzmathematik und der Chaosforschung. Am bekanntesten aber wurde er als Vater der fraktalen Geometrie. Er beschrieb die Mandelbrot-Menge und prägte den Begriff „fraktal“. Mandelbrot trug selbst stark zur Popularisierung seiner Arbeiten bei, indem er Bücher schrieb und Vorlesungen hielt, die für die Allgemeinheit bestimmt waren.

Mandelbrot verbrachte die meiste Zeit seiner Karriere an IBMs Thomas J. Watson Research Center, wo er die Position eines IBM Fellows innehatte. Später wurde er Sterling Professor für Mathematik an der Yale University. Er war ferner wissenschaftlicher Mitarbeiter am Pacific Northwest National Laboratory, der Universität Lille I, dem Institute for Advanced Study und dem Centre national de la recherche scientifique. Mandelbrot lebte bis zu seinem Tode in den Vereinigten Staaten.

Zitate Benoît Mandelbrot

„Wolken sind keine Kugeln, Berge keine Kegel, Küstenlinien keine Kreise und Rinde ist nicht glatt, so wie auch der Blitz nicht auf einer Geraden unterwegs ist“

— Benoît Mandelbrot
Benoit B. Mandelbrot, Richard L. Hudson: Fraktale und Finanzen, Helmut Reuter (Übers.), Piper Verlag, München 2007, ISBN 978-3-492-24861-7, S.180

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„Die frühesten und bedeutendsten Werkzeuge der Wissenschaft entstanden, um die Leistungen unserer Sinne zu beobachten, zu messen und zu verbessern.“

— Benoît Mandelbrot
Benoit B. Mandelbrot, Richard L. Hudson: Fraktale und Finanzen, Helmut Reuter (Übers.), Piper Verlag, München 2007, ISBN 978-3-492-24861-7, S.179

„After having coined this word I sorted my own research over a very long period of time and I realised that I had been doing almost nothing else in my life.“

— Benoît Mandelbrot
Context: The word fractal, once introduced, had an extraordinary integrating effect upon myself and upon many people around. Initially again it was simply a word to write a book about, but once a word exists one begins to try to define it, even though initially it was simply something very subjective and indicating my field. Now the main property of all fractals, put in very loose terms, is that each part — they're made of parts — each part is like the whole except it is smaller. After having coined this word I sorted my own research over a very long period of time and I realised that I had been doing almost nothing else in my life. Segment 67

„Contrary to popular opinion, mathematics is about simplifying life, not complicating it.“

— Benoît Mandelbrot
Context: Contrary to popular opinion, mathematics is about simplifying life, not complicating it. A child learns a bag of candies can be shared fairly by counting them out: That is numeracy. She abstracts that notion to dividing a candy bar into equal pieces: arithmetic. Then, she learns how to calculate how much cocoa and sugar she will need to make enough chocolate for fifteen friends: algebra. Ch. 7, p. 125

„It is beyond belief that we know so little about how people get rich or poor, about how it is they come to dwell in comfort and health or die in penury and disease.“

— Benoît Mandelbrot
Context: It is beyond belief that we know so little about how people get rich or poor, about how it is they come to dwell in comfort and health or die in penury and disease. Financial markets are the machines in which much of human welfare is decided; yet we know more about how our car engines work than about how our global financial system functions. We lurch from crisis to crisis. In a networked world, mayhem in one market spreads instantaneously to all others—and we have only the vaguest of notions how this happens, or how to regulate it. So limited is our knowledge that we resort, not to science, but to shamans. We place control of the world's largest economy in the hands of a few elderly men, the central bankers. Ch. 13, p. 254–255

„Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.“

— Benoît Mandelbrot
Context: Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line. <!-- ** p. 1

„So important is this skill that we apply it everywhere, warranted or not.“

— Benoît Mandelbrot
Context: People want to see patterns in the world. It is how we evolved. We descended from those primates who were best at spotting the telltale pattern of a predator in the forest, or of food in the savannah. So important is this skill that we apply it everywhere, warranted or not. Ch. 12, p. 245

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„Here is the curious thing: the first night I saw the set, it was just wild. The second night, I became used to it. After a few nights, I became familiar with it. It was as if somehow I had seen it before. Of course I hadn't. No one had seen it.“

— Benoît Mandelbrot
Context: There is nothing more to this than a simple iterative formula. It is so simple that most children can program their home computers to produce the Mandelbrot set. … Its astounding complication was completely out of proportion with what I was expecting. Here is the curious thing: the first night I saw the set, it was just wild. The second night, I became used to it. After a few nights, I became familiar with it. It was as if somehow I had seen it before. Of course I hadn't. No one had seen it. No one had described it. The fact that a certain aspect of its mathematical nature remains mysterious, despite hundreds of brilliant people working on it, is the icing on the cake to me.

„There is a saying that every nice piece of work needs the right person in the right place at the right time. For much of my life, however, there was no place where the things I wanted to investigate were of interest to anyone.“

— Benoît Mandelbrot
Context: There is a saying that every nice piece of work needs the right person in the right place at the right time. For much of my life, however, there was no place where the things I wanted to investigate were of interest to anyone. So I spent much of my life as an outsider, moving from field to field, and back again, according to circumstances. Now that I near 80, write my memoirs, and look back, I realize with wistful pleasure that on many occasions I was 10, 20, 40, even 50 years "ahead of my time.

„When you seek some unspecified and hidden property, you don't want extraneous complexity to interfere. In order to achieve homogeneity, I decided to make the motion end where it had started. The resulting motion biting its own tail created a distinctive new shape I call Brownian cluster. … Today, after the fact, the boundary of Brownian motion might be billed as a "natural" concept. But yesterday this concept had not occurred to anyone.“

— Benoît Mandelbrot
Context: When you seek some unspecified and hidden property, you don't want extraneous complexity to interfere. In order to achieve homogeneity, I decided to make the motion end where it had started. The resulting motion biting its own tail created a distinctive new shape I call Brownian cluster. … Today, after the fact, the boundary of Brownian motion might be billed as a "natural" concept. But yesterday this concept had not occurred to anyone. And even if it had been reached by pure thought, how could anyone have proceeded to the dimension 4/3? To bring this topic to life it was necessary for the Antaeus of Mathematics to be compelled to touch his Mother Earth, if only for one fleeting moment.

„So limited is our knowledge that we resort, not to science, but to shamans. We place control of the world's largest economy in the hands of a few elderly men, the central bankers.“

— Benoît Mandelbrot
Context: It is beyond belief that we know so little about how people get rich or poor, about how it is they come to dwell in comfort and health or die in penury and disease. Financial markets are the machines in which much of human welfare is decided; yet we know more about how our car engines work than about how our global financial system functions. We lurch from crisis to crisis. In a networked world, mayhem in one market spreads instantaneously to all others—and we have only the vaguest of notions how this happens, or how to regulate it. So limited is our knowledge that we resort, not to science, but to shamans. We place control of the world's largest economy in the hands of a few elderly men, the central bankers. Ch. 13, p. 254–255

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„How could it be that the same technique applies to the Internet, the weather and the stock market? Why, without particularly trying, am I touching so many different aspects of many different things?“

— Benoît Mandelbrot
Context: How could it be that the same technique applies to the Internet, the weather and the stock market? Why, without particularly trying, am I touching so many different aspects of many different things? A recent, important turn in my life occurred when I realized that something that I have long been stating in footnotes should be put on the marquee. I have engaged myself, without realizing it, in undertaking a theory of roughness. Think of color, pitch, heaviness, and hotness. Each is the topic of a branch of physics. Chemistry is filled with acids, sugars, and alcohols; all are concepts derived from sensory perceptions. Roughness is just as important as all those other raw sensations, but was not studied for its own sake. … I was not particularly precocious, but I'm particularly long-lived and continue to evolve even today. Above a multitude of specialized considerations, I see the bulk of my work as having been directed towards a single overarching goal: to develop a rigorous analysis for roughness. At long last, this theme has given powerful cohesion to my life … my fate has been that what I undertook was fully understood only after the fact, very late in my life.

„For many years I had been hearing the comment that fractals make beautiful pictures, but are pretty useless. I was irritated because important applications always take some time to be revealed.“

— Benoît Mandelbrot
Context: For many years I had been hearing the comment that fractals make beautiful pictures, but are pretty useless. I was irritated because important applications always take some time to be revealed. For fractals, it turned out that we didn't have to wait very long. In pure science, fads come and go. To influence basic big-budget industry takes longer, but hopefully also lasts longer.

„The thought that one unifying idea should continue forever is simply not realistic and therefore not to be hoped for“

— Benoît Mandelbrot
Context: The thought that one unifying idea should continue forever is simply not realistic and therefore not to be hoped for, but I think that for quite a number of years still, perhaps if I am lucky to the end of my life, because I would hate to see that stop in my lifetime, those questions will become very active and still somewhat separate, as different branches of learning become accustomed to them. I cannot imagine that this idea would vanish, not because I am so proud of what I've been doing all my life, but because this is not an artificial thought coming from nowhere in no time and vanishing again rapidly in no time. It has in every one of its manifestations profound roots in the history of the various sciences and the various manners of human enterprise and those roots will not be broken. The continuity of these thoughts will continue, and if any substitute comes, if any other name comes, which is possible, the ideas will remain. Segment 144

„People want to see patterns in the world. It is how we evolved.“

— Benoît Mandelbrot
Context: People want to see patterns in the world. It is how we evolved. We descended from those primates who were best at spotting the telltale pattern of a predator in the forest, or of food in the savannah. So important is this skill that we apply it everywhere, warranted or not. Ch. 12, p. 245

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