Hi Cofty,
"Some young-Earth proponents recently reported that rocks were dated by the potassium-argon method to be a several million years old when they are really only a few years old. But the potassium-argon method, with its long half-life, was never intended to date rocks only 25 years old." There is of course a basic question in all this. That is do we understand radiation well enough to draw conclusions? And is radiation a stable sort of thing? I appreciate this comment isn't a reference to carbon dating, but the same principal applies. That is carbon-14 will decay, whereas carbon-12 is much more stable, thus a ratio between the two is inevitable and the ratio will change over time.
Can our understanding of all this be so flawed that wild range errors will creep into all dating methods? I just don't think that is very likely. I'm a software engineer by trade and I know that understanding how phyiscal systems work, including precise timing, is key to how a computer operates. Likewise a microwave over shows that something is known about physical systems involving radiation work. Solar panels likewise and the list goes on and on. So when someone asks us to believe rocks at Mt. St. Helens were dated incorrectly and that shows our potassium-argon dating methods are flawed, should we not at least ask, is there some religious motivation in play here?
I do believe, some of this comes down to a question of trust. And I am not a radiometric dating expert, so I have to trust someone. But even I can reach a conclusion something is fishy when someone with a religious bias starts asking for a sample of only a few years age to be dated with a method where the half life is 1.2 million years! It is like asking someone to measure the distance between features on a modern CPU with a yard stick, then declaring the yard stick is useless to measure the width of my living room.
Cheers,
-Randy