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New theory links flow of time with Big Bang

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book cover From ScienceDaily, re UC Berkeley’s Richard Muller’s new book NOW: The Physics of Time (W. W. Norton)

Ever since the Big Bang explosively set off the expansion of the universe 13.8 billion years ago, the cosmos has been growing, something physicists can measure as the Hubble expansion. They don’t think of it as stars flying away from one another, however, but as stars embedded in space and space continually expanding.

Muller takes his lead from Albert Einstein, who built his theory of general relativity — the theory that explains everything from black holes to cosmic evolution — on the idea of a four-dimensional spacetime. Space is not the only thing expanding, Muller says; spacetime is expanding. And we are surfing the crest of that wave, what we call “now.”

“Every moment, the universe gets a little bigger, and there is a little more time, and it is this leading edge of time that we refer to as now,” he writes. “The future does not yet exist … it is being created. Now is at the boundary, the shock front, the new time that is coming from nothing, the leading edge of time.”

Because the future doesn’t yet exist, we can’t travel into the future, he asserts. He argues, too, that going back in time is equally improbable, since to reverse time you would have to decrease, at least locally, the amount of space in the universe. That does happen, such as when a star explodes or a black hole evaporates. But these reduce time so infinitesimally that the effect would be hidden in the quantum uncertainty of measurement — an instance of what physicists call cosmic censorship. Paper. (public access) More.

See also: Big Bang exterminator wanted, will train

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3 Replies to “New theory links flow of time with Big Bang

  1. 1
    bornagain77 says:

    As to:

    In exploring the ‘now,’ new theory links flow of time with Big Bang – September 21, 2016
    Excerpt: Why does the arrow of time flow inexorably toward the future, constantly creating new “nows”?,,,
    Muller takes his lead from Albert Einstein, who built his theory of general relativity — the theory that explains everything from black holes to cosmic evolution — on the idea of a four-dimensional spacetime. Space is not the only thing expanding, Muller says; spacetime is expanding. And we are surfing the crest of that wave, what we call “now.”
    “Every moment, the universe gets a little bigger, and there is a little more time, and it is this leading edge of time that we refer to as now,” he writes. “The future does not yet exist … it is being created. Now is at the boundary, the shock front, the new time that is coming from nothing, the leading edge of time.”

    His claim that ‘now’ is constantly being created as we go into the, as of yet, uncreated future finds rather dramatic support in quantum mechanics. But first a little background:

    Einstein was once asked by Rudolf Carnap (a philosopher):

    “Can physics demonstrate the existence of ‘the now’ in order to make the notion of ‘now’ into a scientifically valid term?”

    Einstein’s answer was categorical, he said:

    “The experience of ‘the now’ cannot be turned into an object of physical measurement, it can never be a part of physics.”

    Quote was taken from the last few minutes of this following video.

    Stanley L. Jaki: “The Mind and Its Now”

    And here is a bit more detail of the encounter:

    The Mind and Its Now – May 22, 2008 – By Stanley L. Jaki
    Excerpt: ,,, Rudolf Carnap, and the only one among them who was bothered with the mind’s experience of its now. His concern for this is noteworthy because he went about it in the wrong way. He thought that physics was the only sound way to know and to know anything. It was therefore only logical on his part that he should approach, we are around 1935, Albert Einstein, the greatest physicist of the day, with the question whether it was possible to turn the experience of the now into a scientific knowledge. Such knowledge must of course be verified with measurement. We do not have the exact record of Carnap’s conversation with Einstein whom he went to visit in Princeton, at eighteen hours by train at that time from Chicago. But from Einstein’s reply which Carnap jotted down later, it is safe to assume that Carnap reasoned with him as outlined above. Einstein’s answer was categorical: The experience of the now cannot be turned into an object of physical measurement. It can never be part of physics.

    The meaning of the question of ‘the Now’ can be read in full context in the following article:

    The Mind and Its Now – Stanley L. Jaki, May 2008
    Excerpts: There can be no active mind without its sensing its existence in the moment called now.,,,
    Three quarters of a century ago Charles Sherrington, the greatest modern student of the brain, spoke memorably on the mind’s baffling independence of the brain. The mind lives in a self-continued now or rather in the now continued in the self. This life involves the entire brain, some parts of which overlap, others do not.
    ,,,There is no physical parallel to the mind’s ability to extend from its position in the momentary present to its past moments, or in its ability to imagine its future. The mind remains identical with itself while it lives through its momentary nows.
    ,,, the now is immensely richer an experience than any marvelous set of numbers, even if science could give an account of the set of numbers, in terms of energy levels. The now is not a number. It is rather a word, the most decisive of all words. It is through experiencing that word that the mind comes alive and registers all existence around and well beyond.
    ,,, All our moments, all our nows, flow into a personal continuum, of which the supreme form is the NOW which is uncreated, because it simply IS.

    Prior to his encounter with Carnap, Einstein had another encounter with another famous philosopher, Henri Bergson, over the proper definition of time. In fact, that encounter with Bergson over the proper definition of time was one of the primary reasons that Einstein failed to receive a Nobel prize for relativity:

    Einstein, Bergson, and the Experiment that Failed: Intellectual Cooperation at the League of Nations! – Jimena Canales
    page 1177
    Excerpt: Bergson temporarily had the last word during their meeting at Société française de philosophie. His intervention negatively affected Einstein’s Nobel Prize, which was given “for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect” and not for relativity. The reasons behind this decision, as stated in the prize’s presentation speech, were related to Bergson’s intervention: “Most discussion [of Einstein’s work] centers on his Theory of Relativity. This pertains to epistemology and has therefore been the subject of lively debate in philosophical circles. It will be no secret that the famous philosopher Bergson in Paris has challenged this theory, while other philosophers have acclaimed it wholeheartedly.”51 For a moment, their debate dragged matters of time out of the solid terrain of “matters of fact” and into the shaky ground of “matters of concern.”52,%20Bergson%20and%20the%20Experiment%20that%20Failed%282%29.pdf?sequence=2

    Einstein vs Bergson, science vs philosophy and the meaning of time – Wednesday 24 June 2015
    Excerpt: The meeting of April 6 was supposed to be a cordial affair, though it ended up being anything but.
    ‘I have to say that day exploded and it was referenced over and over again in the 20th century,’ says Canales. ‘The key sentence was something that Einstein said: “The time of the philosophers did not exist.”’
    It’s hard to know whether Bergson was expecting such a sharp jab. In just one sentence, Bergson’s notion of duration—a major part of his thesis on time—was dealt a mortal blow.
    As Canales reads it, the line was carefully crafted for maximum impact.
    ‘What he meant was that philosophers frequently based their stories on a psychological approach and [new] physical knowledge showed that these philosophical approaches were nothing more than errors of the mind.’
    The night would only get worse.
    ‘This was extremely scandalous,’ says Canales. ‘Einstein had been invited by philosophers to speak at their society, and you had this physicist say very clearly that their time did not exist.’
    Bergson was outraged, but the philosopher did not take it lying down. A few months later Einstein was awarded the Nobel Prize for the discovery of the law of photoelectric effect, an area of science that Canales noted, ‘hardly jolted the public’s imagination’. In truth, Einstein coveted recognition for his work on relativity.
    Bergson inflicted some return humiliation of his own. By casting doubt on Einstein’s theoretical trajectory, Bergson dissuaded the committee from awarding the prize for relativity. In 1922, the jury was still out on the correct interpretation of time.
    So began a dispute that festered for years and played into the larger rift between physics and philosophy, science and the humanities.
    Bergson was fond of saying that time was the experience of waiting for a lump of sugar to dissolve in a glass of water. It was a declaration that one could not talk about time without reference to human consciousness and human perception. Einstein would say that time is what clocks measure. Bergson would no doubt ask why we build clocks in the first place.
    ‘He argued that if we didn’t have a prior sense of time we wouldn’t have been led to build clocks and we wouldn’t even use them … unless we wanted to go places and to events that mattered,’ says Canales. ‘You can see that their points of view were very different.’
    In a theoretical nutshell this expressed perfectly the division between lived time and spacetime: subjective experience versus objective reality.,,,
    Just when Einstein thought he had it worked out, along came the discovery of quantum theory and with it the possibility of a Bergsonian universe of indeterminacy and change. God did, it seems, play dice with the universe, contra to Einstein’s famous aphorism.
    Some supporters went as far as to say that Bergson’s earlier work anticipated the quantum revolution of Niels Bohr and Werner Heisenberg by four decades or more.
    Canales quotes the literary critic Andre Rousseaux, writing at the time of Bergson’s death.
    ‘The Bergson revolution will be doubled by a scientific revolution that, on its own, would have demanded the philosophical revolution that Bergson led, even if he had not done it.’
    Was Bergson right after all? Time will tell.

    Moreover, the statement Einstein made to Carnap on the train, ‘the now’ cannot be turned into an object of physical measurement’, was an interesting statement for Einstein to make to the philosopher since ‘the now of the mind’ has, from many recent experiments in quantum mechanics, established itself as central to quantum theory:

    On The Comparison Of Quantum and Relativity Theories – Sachs – 1986
    Excerpt: quantum theory entails an irreducible subjective element in its conceptual basis. In contrast, the theory of relativity when fully exploited, is based on a totally objective view.;f=false

    New Mind-blowing Experiment Confirms That Reality Doesn’t Exist If You Are Not Looking at It – June 3, 2015
    Excerpt: The results of the Australian scientists’ experiment, which were published in the journal Nature Physics, show that this choice is determined by the way the object is measured, which is in accordance with what quantum theory predicts.
    “It proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at it,” said lead researcher Dr. Andrew Truscott in a press release.,,,
    “The atoms did not travel from A to B. It was only when they were measured at the end of the journey that their wave-like or particle-like behavior was brought into existence,” he said.
    Thus, this experiment adds to the validity of the quantum theory and provides new evidence to the idea that reality doesn’t exist without an observer.

    “Reality is in the observations, not in the electron.”
    – Paul Davies

    “We have become participators in the existence of the universe. We have no right to say that the past exists independent of the act of observation.”
    – John Wheeler

    “Look, we all have fun ridiculing the creationists who think the world sprang into existence on October 23, 4004 BC at 9AM (presumably Babylonian time), with the fossils already in the ground, light from distant stars heading toward us, etc. But if we accept the usual picture of quantum mechanics, then in a certain sense the situation is far worse: the world (as you experience it) might as well not have existed 10^-43 seconds ago!”
    – Scott Aaronson – MIT associate Professor quantum computation – Lecture 11: Decoherence and Hidden Variables

  2. 2
    bornagain77 says:

    i.e. ‘the Now’, as philosophers term it, and contrary to what Einstein, (and Jaki), thought possible for experimental physics, and according to advances in quantum mechanics, takes precedence over past events in time. Moreover, due to advances in quantum mechanics, it would now be much more appropriate to phrase Einstein’s answer to the philosopher in this way:

    “It is impossible for the experience of ‘the now of the mind’ to ever be divorced from physical measurement, it will always be a part of physics.”

    Of personal note, rather than Muller saying “we are surfing the crest of that wave, what we call “now.””, and thus giving us the false impression that past time exists independent of our experience of it and that we are thus somehow ‘surfing’ on it, he should have instead emphasized that we, each one of us, as far a general relativity itself is concerned, is at the center of the expansion of space-time rather than on a wave of expanding space time.

    i.e. It is not so much that we are surfing on a wave of space-time as it is being created as it is that we are watching space time as it is being miraculously created for somewhere within ourselves.

    Where is the centre of the universe?:
    Excerpt: There is no centre of the universe! According to the standard theories of cosmology, the universe started with a “Big Bang” about 14 thousand million years ago and has been expanding ever since. Yet there is no centre to the expansion; it is the same everywhere. The Big Bang should not be visualized as an ordinary explosion. The universe is not expanding out from a centre into space; rather, the whole universe is expanding and it is doing so equally at all places, as far as we can tell.

    The Known Universe – Dec. 2009 – a very cool video (please note the centrality of the earth in the universe)

    Journey to the Center of the Universe – video

    I find it extremely interesting, and strange, that quantum mechanics tells us that instantaneous quantum wave collapse to its ‘uncertain’ 3D state is centered on each individual conscious observer in the universe, whereas, 4D space-time cosmology (General Relativity) tells us each 3D point in the universe is central to the expansion of the universe. These findings of modern science are pretty much exactly what we would expect to see if this universe were indeed created, and sustained, from a higher dimension by an omniscient, omnipotent, omnipresent, eternal Being who knows everything that is happening everywhere in the universe at the same time. These findings certainly seem to go to the very heart of the age old question asked of many parents by their children, “How can God hear everybody’s prayers at the same time?”,,, i.e. Why should the expansion of the universe, or the quantum wave collapse of the entire universe, even care that you or I, or anyone else, should exist? Only Theism, Christian Theism in particular, offers a rational explanation as to why you or I, or anyone else, should have such undeserved significance in such a vast universe.

    Psalm 33:13-15
    The LORD looks from heaven; He sees all the sons of men. From the place of His dwelling He looks on all the inhabitants of the earth; He fashions their hearts individually; He considers all their works.  

  3. 3
    Charles says:

    Here’s that public access paper….

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