One hundred percent of every single rock on the entire planet dates to be ages in the hundreds of thousands to millions to billions of years old. Every single one, including the ones when we saw and watched the rock be formed. There is not one time that a rock has ever been dated to be a young age, an accurate age, when we know the age.Wow! 100% of every single rock on the entire planet. Bob sounds so sure! He couldn't be wrong! Could he?
Of course Bob is wrong! Scientists have dated the rock deposited by the eruption of Mt. Vesuvius to within 7 years of the date recorded by history. The scientists used the Argon-Argon dating method, which allows dating that is more accurate than Potassium-Argon dating.
You see, Potassium-Argon dating has its limitations, which Creationists like Bob like to exploit in to attempt to discredit radiometric dating techniques. Radioactive potassium decays to Argon with a half-life of 1,260,000,000 years. That's 1.26 billion years. With such a long half-life, it's impossible to use it to accurately date a rock that is less than 100,000 years old.
Please remember, Bob has no scientific credibility. He has never studied geology. He has no training in any scientific subject.
Bob simply regurgitates nonsense from "creation science" websites like Answers in Genesis.
He expects you to nod your head in agreement.