If one of your major model inputs is off by up to 50%, what does that do to the precision of your predictions about degrees of temperature change a century from now?
The popular RNA World hypothesis is so improbable that multiple universes would be needed to believe it, but some prefer that to the obvious implications.
Old-earth belief tries to paper over a disturbing fact with speculative models, but 160 years of measurements show the strength of our planet's magnetic field is dropping fast.