While this doesn’t render the dating method useless, it does bring its overall accuracy into question.
Most authorities agree that C-14 decays at such a rate that half of it will be gone in approximately 5,730 years.
This means if a specimen contained, say, a pound of C-14 (to make things understandable), in 5,730 years, half of it will be gone, and in another 5,730 years, half of the remaining C-14 will disappear.
The fact is, carbon dating can only be used to date things up to approximately 50,000 years old.
In fact, if an object contains (radioactive) carbon, this should be a clue that the object may not be any older than 50,000 years.
A correct date is not possible unless there was neither the addition nor loss of parent or daughter isotopes.” This assumption is not one that I am willing to concede on.