[MrB]

Assumption of initial conditions (all “parent” elements present?)
Assumption of constant rate of decay
Assumption of non-contamination (gain of material)
Assumption of no leaching (loss of material)
Varying results within one sample in current tests

Remember, no one was around to verify the assumptions above, and there’s no way to verify those assumptions.

[longtermmemmory]

Does a tree make a sound if it falls and nobody hears it fall?

Does not change the fact the tree fell.

[gdani]

Remember, no one was around to verify the assumptions above, and there’s no way to verify those assumptions.

Is it your belief the Earth is merely several thousand years old?