Ok. This thread has really derailed. Sillyrob and Theodolite, Chuck's argument was that the world is only 6000 years old. His comment about 40,000 is the claim that if one accepts mainstream science then you can't use c-14 dating to date something more than 60,000 years old. Then he tried to argue against the validity of c-14 dating by arguing that it dated some objects to dates that were empirically wrong (such as saying recently deceased things were tens of thousands of years old). His argument is bad, but there's no internal contradiction.
Actually my comment is valid. He is simultaneously attempting to use a source to confirm something, and also discredit the source. This is called a paradoxical statement. If one of the effects is true than the other is not.
Carbon dating is a useful way to estimate the age of things that are under 40-60,000 years old.
It is not the only method used, and is by far the least accurate.
He has stated that the earth is 4000-6000 years old, i am stating that carbon dating is useful as evidence in this age range.
The topic of how old RE is, is a seperate one, and needs to be studied in a different way.
It is very arrogant of someone to assume that their alternate theory is the only alternate theory, or the only alternate possible result.
Lets say for example someone proves that the earth isnt 4.5 billion years old, they will do this by implying it is a different age and showing their work. It does not confirm other theories to discredit the 4.5 billion year theory.