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Author Topic: Human Life is Fragile but EVERY Life is Valuable  (Read 15604 times)

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AGelbert

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Is the Universe Fine-Tuned for Life?


By Anil Ananthaswamy on Wed, 07 Mar 2012

SNIPPET:

Quote
The laws of physics and the values of physical constants seem, as Goldilocks said, “just right.” If even one of a host of physical properties of the universe had been different, stars, planets, and galaxies would never have formed. Life would have been all but impossible.

Take, for instance, the neutron. It is 1.00137841870 times heavier than the proton, which is what allows it to decay into a proton, electron and neutrino—a process that determined the relative abundances of hydrogen and helium after the big bang and gave us a universe dominated by hydrogen. If the neutron-to-proton mass ratio were even slightly different, we would be living in a very different universe: one, perhaps, with far too much helium, in which stars would have burned out too quickly for life to evolve, or one in which protons decayed into neutrons rather than the other way around, leaving the universe without atoms. So, in fact, we wouldn’t be living here at all—we wouldn’t exist.

Examples of such “fine-tuning” abound. Tweak the charge on an electron, for instance, or change the strength of the gravitational force or the strong nuclear force just a smidgen, and the universe would look very different, and likely be lifeless. The challenge for physicists is explaining why such physical parameters are what they are.

This challenge became even tougher in the late 1990s when astronomers discovered dark energy, the little-understood energy thought to be driving the accelerating expansion of our universe. All attempts to use known laws of physics to calculate the expected value of this energy lead to answers that are 10120 times too high, causing some to label it the worst prediction in physics.

“The great mystery is not why there is dark energy. The great mystery is why there is so little of it,” said Leonard Susskind of Stanford University, at a 2007 meeting of the American Association for the Advancement of Science. “The fact that we are just on the knife edge of existence, [that] if dark energy were very much bigger we wouldn’t be here, that’s the mystery.” Even a slightly larger value of dark energy would have caused spacetime to expand so fast that galaxies wouldn’t have formed.

That night in Hawaii, Faber declared that there were only two possible explanations for fine-tuning. “One is that there is a God and that God made it that way,” she said. But for Faber, an atheist, divine intervention is not the answer.

“The only other approach that makes any sense  is to argue that there really is an infinite, or a very big, ensemble of universes out there and we are in one,” she said.

http://www.pbs.org/wgbh/nova/blogs/physics/2012/03/is-the-universe-fine-tuned-for-life/

Agelbert NOTE: AND, the "sense" they are making about "an infinite, or a very big, ensemble of universes" is TOTALLY LACKING IN ANY EVIDENCE WHATSOVER except the Excedrin headaches atheists get from where the ACTUAL EVIDENCE of FINE TUNING POINTS TO.  ;D
He that loveth father or mother more than me is not worthy of me: and he that loveth son or daughter more than me is not worthy of me. Matt 10:37

 

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