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According to Science Daily, “Since the formation of C14 is affected by Earth’s magnetic field and solar activity and is therefore not constant, this relative time scale has no absolute timestamp in calendar years.” Links: Nature News, Science Daily So at best we can comment Ramsey’s team is adding the assumption that one set of layers formed per year to supplement/reinforce the assumption C14 has formed at a constant rate, and we predict in the end both of these assumptions will be their undoing.But there are several more unstated assumptions in carbon 14 dating apart from the ones admitted above.From then on the C14 decays, but the normal carbon (C12) does not.

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To understand this we need to look at the method and its continually revisable history. Carbon dating is a method of estimating the age of organic matter by measuring the amount of radioactive carbon (C14) in the item.They next started to use C14 dates from tree rings compared against the number of rings, assuming one set of tree rings per season, but they soon discovered they only had enough tree ring samples to make the method usable at best for 14,000 years (in their estimation), so what to do next?Since then they have tried stalactite growth patterns and coral growth lines to calibrate the clock, yet got nowhere near the 70,000 years, no in despite confident claims on BBC documentaries, National Geographic, etc. In the continuing search for a longer record, they have now studied lake sediment layers containing Carbon rich leaves to get a more accurate and longer time clock.Any variation would speed up or slow down the clock.As commented in Nature News: “Various geologic, atmospheric and solar processes can influence atmospheric carbon-14 levels.” This means the formation of C14 is not constant.But it is obvious they are still a way short of 70,000 years.