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Ch. 1 - The Mystery of Being

#89: Nov. - Dec. 2010 (Non-Fiction)
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Chris OConnor

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Ch. 1 - The Mystery of Being

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Ch. 1 - The Mystery of Being

Please use this thread for discussing Ch. 1 - The Mystery of Being.
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Jim Watters
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Re: Ch. 1 - The Mystery of Being

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Chapter One is short and serves as a launching point for the rest of the book.

Topics mentioned are:

Richard Phillips Feynman's path integral formulation of quantum mechanics

M-Theory which is a conglomeration of 5 related Superstring theories

No math is involved, nor difficult concepts presented, except that due to the above theories, there may be an infinite number of universes and humans just happen to live in the ones that support human life.

Interesting that Professor Hawking ends this chapter with a quote from Douglas Adam's "Life, the Universe, and Everything" being that the answer to everything is the number 42.

Today is 10/10/10. If you make that binary (base 2 which computers use) that's 101010 (b2), converted to decimal (base 10), that is 42 (which is also my, Chris, and Frank's age). Alright, enough with the freak show.
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Chris OConnor

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Re: Ch. 1 - The Mystery of Being

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I can see this is going to be an interesting book discussion with you at the helm! LOL
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Re: Ch. 1 - The Mystery of Being

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Don't take off too fast. Some of us don't have the book yet.
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Jim Watters
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Re: Ch. 1 - The Mystery of Being

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O.K. Chapter 1 was very short and I just gave a summary with links to topics in Chapter 1 that readers might be interested in reading more about. This is a teaser for when the November-December discussions start.
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Jim Watters
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Re: Ch. 1 - The Mystery of Being

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Here's a recent video of Brian Greene discussing some of the ideas behind extra dimensions beyond the 4 of space-time. (This is a Richard Dawkins production.)

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Suzanne

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Re: Ch. 1 - The Mystery of Being

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Chris OConnor wrote:I can see this is going to be an interesting book discussion with you at the helm!
It will be interesting, I'm excited. Thank you Jim for taking the helm!
I should be receiving my book within the next couple of days.
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Jim Watters
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Re: Ch. 1 - The Mystery of Being

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Thank you Suzanne. I've been following this stuff for 24 years now and have accumulated a couple hundred books over the years on these topics in physics.

I showed Chris one of Stephen Hawking's books I have where I can't understand the mathematics (yet) "The Large Scale Structure of Space-Time".

I look forward to your participation soon! :)
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GaryG48
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Re: Ch. 1 - The Mystery of Being

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First I would like to say I very much enjoyed this book. It did a good job of balancing accessibility and accuracy. Quantum mechanics is contrary to common sense and therefore lots of my questions and comments are going to sound like criticism—I do not intend to cast aspersions at the book, only my own inability to step out of what I call rational.

“Traditionally these are questions for philosophy, but philosophy is dead. Philosophy has not kept up with modern developments in science, particularly physics. Scientists have become the bearers of the torch of discovery in our quest for knowledge.”

I think the point is that traditional philosophy which tried to answer all questions has been replaced by modern science. Probably got that right. But, since the book is almost completely philosophy of science, philosophy is far from dead.

Who wrote this book? Hawking and Leonard Mlodinow share author credits but I wonder. A Brief History of Time felt like Hawking was taking us, along with Roger Penrose, on a journey of discovery. The style of this book is different; it is a protracted lecture. Has Hawking's style changed, it has been a long time since the publication of A Brief History of Time, or are we seeing Mlodinow's influence? Nothing left to be discovered, we have the answers. I know that is not their theme but the style implies such.

According to Feynman, a system has not just one history but every possible history.

Now, that certainly sounds like something Feynman would say but, since there are no formal references in this book, there is no easy way to know for sure. In fact, everything presented here seems like it is to be taken as received truth. Another point: when philosopher, theologian, and professor Peter Abelard was asked in the 12th century, to explain how God could be omniscient and still allow free will Abelard's response was that God knew all possible histories and all possible futures given any history but we were free to chose our own actual futures. Interesting, a rationalization is found for one of the mysteries about God and the same rationalization is used to explain what to me is a mystery of science.


More later. I don't want to spoil anyone's fun.
--Gary

"Freedom is feeling easy in your harness" --Robert Frost
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Re: Ch. 1 - The Mystery of Being

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When the book states that philosophy is dead, they meant that the various systems of beliefs about the nature of reality do not encapsulate the scientifically proven reality that quantum mechanics is. (Though in the 1930's attempts were made to develop philosophies around quantum mechanics such as the Copenhagen interpretation). I have an old book called Quantum Reality that gets into many "philosophies" based on "classical" quantum mechanics.

Some book reviews on "The Grand Design" state that it sounds like the authors are talking down to us like we are children. Chris can collaborate on the one who had most influence on writing the book as he has contacted the authors!

The way I understood Feyman's sum-over-histories (Path Integral) approach, which has been scientifically proven correct in so many ways, is his thought experiment of the standard double-slit experiment:



Except Feynman asked what if you had another barrier with two slits halfway between the first barrier of two slits and the detector? And what if one of the barriers had three slits instead? What if you place 50 slitted barriers in front of the detector? Finally, what about an infinite number of barriers with an infinite number of slits? That would mean there would be nothing between the projector and the screen. Mathematically you can sum up all possible histories of a quantum particle to get the result. I couldn't find a better link: blogs.uslhc.us/the-double-slit-experime ... over-paths

The Path Integral approach was used in deriving Quantum Electrodynamics (he received a Nobel Price for this), which is the most accurate model in physics. It is also used in the other field theories which have been able to predict new particles and phenomena had hadn't been discovered at the time yet, but were eventually discovered at the energies predicted by the mathematical models.
Last edited by Jim Watters on Sun Oct 24, 2010 1:48 am, edited 1 time in total.
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