Carbon dating theory
The lecturer talked at length about how inaccurate C14 Dating is (as 'corrected' by dendrochronology).
She says this is ok so long as you take into account the correction factors from dendrochronology.After all, this what the archeologist guessed in their published books.Some believe trees are known to be as old as 9,000 years. A lot of people doubt this claim for various good reasons I wont go into here.So they tested some of the ring sequences by C14 to put the sequences in the 'right' order.
Once they did that they developed the overall sequence.In fact, 14C is forming FASTER than the observed decay rate.