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::: Once one concedes that the decay rates may be declining, as one must, then the rates cannot be used to infer the age of the universe. If the universe is 5000 years old, then the decay rate first declined rapidly thousands of years ago. The half-life may have only been 100 years at the time of Christ. I don't see how such a half-life would make any difference to the sustenance of life.--[[User:Aschlafly|Aschlafly]] 15:24, 5 May 2007 (EDT)
::: Once one concedes that the decay rates may be declining, as one must, then the rates cannot be used to infer the age of the universe. If the universe is 5000 years old, then the decay rate first declined rapidly thousands of years ago. The half-life may have only been 100 years at the time of Christ. I don't see how such a half-life would make any difference to the sustenance of life.--[[User:Aschlafly|Aschlafly]] 15:24, 5 May 2007 (EDT)
::::First off, there is no evidence that decay rates would be declining, as said, that would brake the laws of physics as we know them. Some scientist have speculated that in some special circustamses, like during the very first moments of Big bang those laws might have been under a change, other than that, its all highly speculative talk around fine-structure constant and the changing of the four fundamental forces gravity, electromagnetism, and the strong and weak nuclear forces. None of this has ever been proven to happen and for it to happen in a scale that would change the decay rates enough to make earth 6000 years old... One thing tho is "sure" if that would have happened, and the half time of C-14 had changed enought that it would make any diffrence in age measurements, it would have caused catastrohic consequenses for all life on earth. Mayby even for the whole universe. Simple reason for this is that you cant only change the half time of C-14. That would make the existing unstable nucleids less stable, and will also make currently stable nucleids unstable. Which would be very very '''very''' bad thing. [[User:Timppeli|Timppeli]] 15:54, 5 May 2007 (EDT)
== the 50,000 year mark ==
== the 50,000 year mark ==