Something from Nothing - Dawkins & Krauss [Split from Science]

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Re: Something from Nothing - Dawkins & Krauss [Split from Science]

#521  Postby Rumraket » Mar 19, 2012 5:31 am

Lion IRC wrote:Game of Pacman
Game entities can exit screen via opening on the left of maze and magically re-enter via opening on the opposite side of the maze - (universe.)
Image

Pacman is magic now? :rofl:
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Re: Something from Nothing - Dawkins & Krauss [Split from Science]

#522  Postby Rumraket » Mar 19, 2012 5:35 am

Lion IRC wrote:
Nebogipfel wrote:@[color=#CC0000][b][color=#CC0000][b]lion:[/b][/color][/b][/color]
Without matter, there would be no consciousness, awareness, information, knowledge or words. Take a look in the mirror...


Mr Krauss begs to differ. He says if you take away all matter/energy there would STILL be something.

He has even written a book about that "something".

Anyway........
On a different point about his book, he uses a matrix of dots to try and illustrate the expanding universe and resolve the apparent geocentricity problem. (Everything looks the same in every "direction" no matter which direction we look from Earth.) His example is a 2D graphic and the one I have picked below is 3D (just for emphasis.) Each dot represents a galaxy. The observer in each galaxy "sees" the same thing - all others apparently moving away at an accelerating rate, distance/time inverse proportion, farthest galaxies further apart....etc etc. You get the idea.

BUT...

...he doesnt even seem to attempt a resolution of the idea that there IS a point in an outwardly expanding universe where the observer will see more galaxies when they look in one "direction" than if they look in the opposite "direction".

From a central point somewhere in the universe it might be easy to assert that everything appears the same in every direction ---> maybe that's how it is no matter where you are in the universe ---> maybe space is curved ---> maybe there is no center.

But despite the "matrix of dots" graphics that Mr Krauss uses to illustrate the perspective of one galaxy moving away from every other, this does not inescapably result in a conclusion that everywhere is the center. If anything, his choice of graphic emphasises that - in an expanding universe - there would be galaxies from which the observer would look out and realise they are NOT at the center because of the greater number of galaxies situated to their left as opposed to there being fewer galaxies on their right.

Image

Image

Congratulations, you don't understand the limitations of projecting a 4-dimensional open universe on a flat 2-dimensional surface.

You should try and picture all of the contents of the universe on the surface of an inflating sphere. That's the proper analogy. In that case, there is no center and looking in all directions from any point would look the same.
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Re: Something from Nothing - Dawkins & Krauss [Split from Science]

#523  Postby Nebogipfel » Mar 19, 2012 7:13 am

Lion IRC wrote:
Nebogipfel wrote:@[color=#CC0000][b][color=#CC0000][b]lion:[/b][/color][/b][/color]
Without matter, there would be no consciousness, awareness, information, knowledge or words. Take a look in the mirror...


Mr Krauss begs to differ.


I doubt it. Can you provide a quote from Krauss in which he states that concsiousness and awareness can exist in the absence of matter?


He says if you take away all matter/energy there would STILL be something.

He has even written a book about that "something".


But that "something" is not consiousness, information, knowledge or words. I haven´t read Krauss´book, but I´d be extremely surprised if that´s what Krauss actually thinks.

So again, one has to ask in one sense a conscious lump of matter is in a different category from an unconscious lump of matter?
What is a category anyway?
Once again, the only sensible approach is tentatively to reject the dragon hypothesis, to be open to future physical data, and to wonder what the cause might be that so many apparently sane and sober people share the same strange delusion
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Re: Something from Nothing - Dawkins & Krauss [Split from Science]

#524  Postby Nebogipfel » Mar 19, 2012 9:24 am

Sagan on the expanding universe... the section between 03:00 and 05:00 is particularly relevant.

[youtube]http://www.youtube.com/watch?v=aHY6M6k0TQU[/youtube]
Once again, the only sensible approach is tentatively to reject the dragon hypothesis, to be open to future physical data, and to wonder what the cause might be that so many apparently sane and sober people share the same strange delusion
-- Carl Sagan
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