How does the existence of additional carbon-14 affect dating? Do objects absorb new amounts from the burst? Do objects with carbon-14 convert slower if atmosphere contains more carbon-14?
Wondering about the process.
I get the estimating is pretty accurate, but wonder about the variables. Do these known and unknown variables have a significant +- range that causes dating to be within decades/centuries etc as we go further back in time without less corresponding data points? Could local conditions have significantly different rates than the assumed average?
Or are these fluctuations minor compared to the totals?
Not sure why but I would guess that such bursts might have larger affect when recent that if long ago.
The generally accepted error is ±50 years, with the known date corrections.
There are local variations and species to species variation (grasses absorb 14C at a different rate than broad leaves, for example)
I would also guess that the older the sample the larger the error, but don't know if a recent burst would have a larger effect.