Originally posted by joe beyser
It is my contention that both sides of this argument are biased more on belief than fact. A good example is the radiometric dating methods you used as an example earlier. The assumptions that are made in order for these methods to work are a leap of faith and not factual. Back in the 70's it was admitted that the radiometric dating evidence that does not ...[text shortened]... e brilliant but cannot overcome a leap of faith that is required as assumptions had to be made.
That unreliability in dating would be a problem if there were just one dating method in use. The fact of the matter is there are about 20 separate techniques that date geologic time. They all agree within some window of uncertainty but that window is narrow enough to conclude the dates can be taken seriously. So they might be off a million years or more on the older dating techniques. 1 million years out in 4 billion years of Earth history makes that dating accurate to within one part in 4000.
If I measure the width of a cylinder with several methods, say a ruler around the cylinder and divide by PI, or I use a digital caliper and measure the diameter that way, they will both agree and I personally would be as happy as a pig in shyte if my measurements in total gave me an accuracy of one part in 4000. In inches, that would be a measurement accurate to within 250 MILLIONTHS of an inch. Anyone at Volvo or Toyota or Detroit would be totally happy with that kind of measurement on motor parts. The only thing I can think of in my personal experience that needs more accuracy than that is a device called the Ferrofluidic feedthrough which uses a magnetically active fluid in the presence of a magnetic field which sets up a barrier to air going by a shaft and so functions quite well as an interface between mechanical requirements (getting rotating parts inside a vacuum system) and keeping the integrity of said vacuum and the shaft and its holder needs to be accurate to within 100 microinches, one part in 10,000.
That is one of the very few devices needing that kind of physical accuracy.
If dating methods were that accurate, it would be within 250,000 years out of 4 billion year of accuracy.
But even 1 million years out of 4 billion is WAY good enough to give confidence to such dating.
Like saying something is 4,500,000,000 years old when in fact it is 4,501,000,000 years old. Not exactly something to get all whooped up about the misread date.