Frasi di John Archibald Wheeler
John Archibald Wheeler
Data di nascita: 9. Luglio 1911
Data di morte: 13. Aprile 2008
Frasi John Archibald Wheeler
Origine: Citato in Franco Selleri, La causalità impossibile: l'interpretazione realistica della fisica dei quanti, Jaca Book, 1988.
„Of all heroes, Spinoza was Einstein's greatest. No one expressed more strongly than he a belief in the harmony, the beauty, and, most of all, the ultimate comprehensibility of nature.“
John Archibald Wheeler, in "Albert Einstein in Biographical Memoirs Vol. 51, by the National Academy of Sciences
„I had the good fortune of having my first and only heart attack last January … I call it good fortune because it taught me that there's a limited amount of time left and I better concentrate on one thing: How come existence? How come the quantum? Maybe those questions sound too philosophical, but maybe philosophy is too important to be left to the philosophers.“
As quoted by Amanda Gefter (from the symposium in honor of Wheeler's 90th birthday) [Trespassing on Einstein's lawn: a father, a daughter, the meaning of nothing, and the beginning of everything, 2014, https://books.google.com/books?id=NUMkAAAAQBAJ]
„Today I think we are beginning to suspect that man is not a tiny cog that doesn’t really make much difference to the running of the huge machine, but rather that there is a much more intimate tie between man and the universe than we heretofore suspected…The physical world is in some deep sense tied to the human being.“
As quoted in by Ken Wilber in Quantum Questions: Mystical Writings of the World's Great Physicists (2001) Shambhala, ISBN 1570627681.
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„There are many modes of thinking about the world around us and our place in it. I like to consider all the angles from which we might gain perspective on our amazing universe and the nature of existence.“
— John Archibald Wheeler, Geons
[John Archibald Wheeler, Kenneth William Ford, Geons, Black Holes, and Quantum Foam: A Life in Physics, W. W. Norton & Company, 2000, 0393319911, 153]
Wheeler's succinct summary of Einstein's theory of general relativity, in Geons, Black Holes, and Quantum Foam (2000), p. 235. http://books.google.com/books?id=zGFkK2tTXPsC&lpg=PA1&pg=PA235
„Is the very mechanism for the universe to come into being meaningless or unworkable or both unless the universe is guaranteed to produce life, consciousness and observership somewhere and for some little time in its history-to-be? The quantum principle shows that there is a sense in which what the observer will do in the future defines what happens in the past—even in a past so remote that life did not then exist, and shows even more, that 'observership' is a prerequisite for any useful version of 'reality.“
As quoted by Paul Davies, Other Worlds (1980)
„We are participators in bringing into being not only the near and here but the far away and long ago. We are in this sense, participators in bringing about something of the universe in the distant past and if we have one explanation for what's happening in the distant past why should we need more?“
"The Anthropic Universe" http://www.abc.net.au/radionational/programs/scienceshow/the-anthropic-universe/3302686 (Feb 18, 2006) Australia's Science Show, with Martin Redfern moderating excerpts from several scientists, including Wheeler. Audio recording http://mpegmedia.abc.net.au/rn/podcast/2006/02/ssw_20060218_1200.mp3 and transcript available. See also same show at WayBack Machine, https://web.archive.org/web/20080616183602/http://www.abc.net.au/rn/science/ss/stories/s1572643.htm Internet archive.org.
As quoted by Charles W. Misner, Kip S. Thorne, and Wojciech H. Zurek. "John Wheeler, relativity, and quantum information." https://authors.library.caltech.edu/15184/1/Misner2009p1638Phys_Today.pdf Physics Today 62, no. 4 (April 2009): 40–46 (quote from p. 44) [10.1063/1.3120895]
„It from bit symbolizes the idea that every item of the physical world has at bottom — at a very deep bottom, in most instances — an immaterial source and explanation; that which we call reality arises in the last analysis from the posing of yes-no questions and the resistering of equipment-evoked responses; in short, that all things physical are information-theoretic in origin and that this is a participatory universe.“
"Information, Physics, Quantum: The Search for Links" in Complexity, Entropy and the Physics of Information (1990) ed., Wojciech H. Zurek, p. 5. http://books.google.com/books?id=mdjsOeTgatsC&lpg=PP1&pg=PA5
Wheeler quoted this saying in Complexity, Entropy, and the Physics of Information (1990), p. 10 http://books.google.com/books?id=mdjsOeTgatsC&lpg=PP1&pg=PA10#v=onepage&q&f=false, with a footnote attributing it to "graffiti in the men's room of the Pecan Street Cafe, Austin, Texas". Later publications, such as Paul Davies' 1995 book About Time (p. 236), credited Wheeler with variations of this saying, but the quip is actually much older. The earliest known source is Ray Cummings' 1922 science fiction novel The Girl in the Golden Atom, http://www.gutenberg.org/ebooks/21094 Ch. V: " 'Time,' he said, 'is what keeps everything from happening at once.' " It also appears in his 1929 novel The Man Who Mastered Time. http://books.google.com/books?id=YdZEAAAAYAAJ&q=%22everything+from+happening+at+once%22#search_anchor The earliest known occurrence other than Cummings is from 1962 in Film Facts: Volume 5, p. 48 http://books.google.com/books?id=sr0vAQAAIAAJ&q=%22everything+from+happening+at+once%22.
„Of all heroes, Spinoza was Einstein's greatest. No one expressed more strongly than he a belief in the harmony, the beauty, and most of all the ultimate comprehensibility of nature.“
"Albert Einstein" in Biographical Memoirs (1980) Vol. 51, National Academy of Sciences.
„Of all obstacles to a thoroughly penetrating account of existence, none looms up more dismayingly than “time.” Explain time? Not without explaining existence. Explain existence? Not without explaining time. To uncover the deep and hidden connection between time and existence, to close on itself our quartet of questions, is a task for the future.“
"Hermann Weyl and the Unity of Knowledge" http://www.weylmann.com/wheeler.shtml, American Scientist (July-August 1986) Vol. 74, pp. 366-375. Reprinted in At Home in the Universe (1993), p. 171. http://books.google.com/books?id=w9BXAAAAYAAJ&q=%22hermann+weyl+and+the+unity+of+knowledge%22#search_anchor