Why is carbon dating inaccurate after 50000 years

Radioactive decay rates have been measured for over sixty years now for many of the decay clocks without any observed changes.

And it has been close to a hundred years since the uranium-238 decay rate was first determined.

The latest high-tech equipment permits reliable results to be obtained even with microscopic samples.

In a separate article (Radiometric dating), we sketched in some technical detail how these dates are calculated using radiometric dating techniques.Whenever possible we design an age study to take advantage of other ways of checking the reliability of the age measurements.The simplest means is to repeat the analytical measurements in order to check for laboratory errors.Several hundred laboratories around the world are active in radiometric dating.Their results consistently agree with an old Earth.

Why is carbon dating inaccurate after 50000 years