rationalskepticism.org

Rumraket wrote:

Fenrir wrote:Uniformitarianism is not an assumption. Tis a conclusion.

It's actually a hypothesis that has stood the test of time in most areas.

Eh, not in the way he likely imagines it. Uniformitarianism to creationists is usually the stuff of James Lyell, which isn't what geologists usually hold anymore. Rather they accept "Actualism", which accepts both catastrophic occurences and slow processes, both of which have impacted the Earth's geologic record.

Either way, radiometric dating does not rely on uniformitarianism, but he's likely objecting to the set half-lives of the isotopes. Probably thinks they were faster in the past, or something.