how do you know?
We have billions of fossils and other correlated data from across the spectrum of science, including physical, physics and c chemistry. The OP itself speaks at length of its approach and results.
Sorta beats your “’just because I think so” non-refutation.
But feel free to tell me which of the OP’s approaches is incorrect and how. Or what part of the entire spectrum of natural science is wrong.
Do so and the world is your oyster.