I, too, am curious where you got your information, -57. I'm wondering if it came from another creation-science ruse. Creation-science people can be really devious and sneaky. They love playing up difficulties occurred in scientific measurements. Their goal is to make it appear evolutionary science is all false, as it is all based on inaccurate measurements. Oftentimes, laity, unfamiliar with scientific methods, easily fall what the creation-science people claim. I don't know about the data you are presenting; however, let my give another case in point: Barry Settlefield has argued that all current estimates of c (speed of light ) are totally wrong. Hence, scientists either knew this and were hiding data, or just weren't well-educated enough. Setterfield claims that c actually does vary significantly and therefore is not at all constant as per mainstream science. Setterfield's logic is that c was infinite at the beginning of creation and has been slowing down ever since. If scientists worked in this equation, they would easily see that we inhabit a very young earth. But where is Satterfield's hard data? Another tricky maneuver. He argues that if you carefully went through estimates of c in historical order, these have been continually getting slower. Looks real convincing to many laity. However, the fact is, when you do go through estimates of c in historical order, they have been consistently been getting faster. Check it out for yourself. Of course, creation-science people don't just stop at measuring c. They attack just about any scientific measure used today. What they don't tell you is that there never has been, is, or will be a totally perfect measuring instrument on this planet, except, of course, for ones used by creation-science people. For example, I'm one of the lucky few who get to run a real steam locomotive. And I could go on and on about how key measuring devices just for the water level and pressure can get really screwed up. I'll stop, simply by saying we know all this already and take steps to compensate. Same with science. Creation people , for example, love to play up difficulties presented by carbon-14 darting. But how did they find out about these? From the scientists themselves who devised and use this instrument, that's how. Creation-science people had nothing to do with this. Now I find you won't find too many creation-scientists pointing that out. And you won't find many creation-science people mentioning that, in the field, the scientists take all sorts of precautions to insure their results are accurate. And, believe me, are they ever picky here. I should know. A friend of mine is a professional anthropologist, and boy oh boy, is his team fussy abut thecarbon14 samples, right down to insisting they have to be packaged in some specific way. What if they are not, what if there is any slipup here? The sample is thrown out as contaminated. In the field, there are not on, but a number of measurements taken. Up to at least three samples are taken for c-14 dating. In addition, a separate system of measurement is also used. Everything has to yield the same result. If not, then you simply take the data as inconclusive and try again. Remember, it was the scientists themselves that seem to be having difficulty dating the rock, and certainly not creation -science people. So, if that is a real case, thing to do is check out what the scientists had to say. Perhaps a better example is the fact that there are famous cases where the carbon-14 data did not agree with the date the historians accept for such-and-such a antique. Since in a case like this, you cannot determine who's at fault, the data here is simply interpreted by both sides as inconclusive and in need of further research. The fact the FBI does not always come up with decent latent prints in no way invalidates their fingerprinting methods.