That said, it IS the idea of daughter products that forces a dating scientist to go through all the trouble I just mentioned in order to come up with a reliable date estimate. [And in scientific circles they ALL know they're dealing with estimates.] But most importantly, in the scientific literature, they *always* give what the +/- date range is, because the first check another scientist is going to do, is "how much error was in that measurement?"- But they don't generally post it in the layman's literature, do they?