Carrying on a topic from another thread, the question is what would a scientist dating isotopes in a rock that was sitting there a day after the creation of the world by God claim the age of that rock was?
Here is an example of an old rock
"Zircon is a small but mighty mineral. It is one of
Earth’s little
timekeepers. Zircon
typically forms during the crystallization of magma where radioactive uranium can substitute for zirconium in the mineral lattice.
Following crystallization, the radiometric clock starts ticking. The unstable radioactive uranium atoms break down through a process known as “decay.” The atoms lose subatomic particles and emit energy. Particle loss includes a decrease in the number of protons which
ultimately changes the uranium to lead. The
rate of this decay is well known and allows scientists to very accurately date the zircon. Radiometric dating analysis of the Jack Hills detrital zircon grains yield dates as old as 4.404 Ga! This is the oldest Earth material discovered to date, formed merely ~150 Ma after the inception of Earth."
geo.libretexts.org
If this rock is there 2 days after God created it, then the zircon in it did not form 'typically'! Any lead in the rock would not be there because of decay! So the known rate of decay would not even be a factor in any true dating of this rock the day after it was created.
The rock would be 2 days old. Yet the crystals and isotopes in that rock would appear to the scientists to be billions of years old.
If we extend this several thousand years to a scientist looking at that rock today, the same principle applies. The stuff in the rock would not have changed all that much. Yet the rock, now being something like 6000 years after the time it was created, would be (and is) dated to be billions and billions of 'years' old.
By expelling God from the picture, then, and using ONLY natural processes to date the rock and tell us how it was 'formed' that is nothing more than a statement of preferences and faith. The preference is to use only the natural to explain creation. Faith comes in because no one can prove there is no God or that there is, so using the one belief (only the natural) cannot arrive at the truth.