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To: Neeka who wrote (357)	3/19/2005 11:07:08 PM
From: ManyMoose	Read Replies (1) \| Respond to of 725

I was just reading about a book called "Just Six Numbers" which probably fits right in. It says that if the numerical values of just six factors were slightly different--one is the strength of the force of gravity, for instance--then the universe could not exist, and life would be impossible. By the way, I really like the number SIX because it is the number of bullets in the Most Powerful Handgun in the Whirrrllld! Maybe there are other universes in which the values are different, parallel to ours. This could be the essence of "What the Bleep Do We Know?" I clipped the following from a review at Amazon.com: what are these six fundamental numbers? The first is a ratio of the strength of the electrical forces that hold atoms together divided by the force of gravity between them. It is very large, about 1036, and were it a few zeros shorter, only a short-lived miniature universe could exist and there would be no time for biological evolution. The second number is also a ratio and is the proportion of energy that is released when hydrogen fuses into helium. This number is 0.007, and if it were 0.006 or 0.008 we could not exist. The third number, also a ratio, relates the actual density of matter in the universe to a 'critical' density. At first sight this number appears to be about 0.4. If this ratio were too high the universe would have collapsed long ago: if too low, galaxies or stars would not have formed. The fourth number, only recently discovered, is a cosmic 'antigravity' and appears to control the expansion of the universe even though it has no discernible effect on scales less than a billion light years. The fifth number is the ratio of the energy required to break apart a galaxy compared to its 'rest mass energy' and is about 10-5. If this ratio were smaller the universe would be inert and structureless: if much larger the universe would be so violent that no stars or sun systems could survive. The sixth number, surprisingly, is the number of spatial dimensions in our world (3). Life could not exist if this was 2 or 4. In this book Sir Martin discusses each of the above and develops reasons for the limits that he gives. He postulates that perhaps there are some connections between these numbers but states that at the moment we cannot predict any one of them from the values of the others. Perhaps a 'theory of everything' will eventually yield a formula that interrelates them. More thought provoking is Sir Martin's discussion of what or who 'tuned' these numbers. He identifies three scenarios. One is the hard-headed approach of 'we could not exist if these numbers weren't adjusted in this special way: we manifestly are here, so there's nothing to be surprised about'. Another is that the 'tuning' of these numbers is evidence of a beneficent Creator, who formed the universe with the specific intention of producing us. For those who do not accept the 'providence' or Creator arguments, and Sir Martin places himself in this category, there is another argument, though still conjectural. This is that the 'big bang' may not have been the only one. Separate universes may have cooled down differently, ending up governed by different laws and defined by different numbers. Certainly, reading this book (and its no light task in coming to grips with the scale or immensity of the numbers) has been rewarding for me and has awakened in me an interest in looking further into other discussions regarding the 'big bang', time and parallel universes. David Skea, Reviewer