Proponents of evolution publicize radioisotope dating as a reliable and consistent method for obtaining absolute ages of rocks and the age of the earth.
This is because we failed to take into account some critical assumptions.
Since we did not observe the initial conditions when the hourglass time started, we must make assumptions.
All three of these assumptions can affect our time calculations.
The decay of The radioisotope dating clock starts when a rock cools.
During the molten state it is assumed that the intense heat will force any gaseous daughter elements like argon to escape.