A geologist or paleontologist focused on radiometric dating and the interpretation of geological time scales, with a strong academic or research background and an interest in educating others on the subject, and possibly having a neutral or critical stance towards young Earth creationist perspectives.
Misinterpretations of radiometric dating, fueled by biases or lack of understanding, can lead to inaccurate conclusions about Earth's age and geological processes, even in the calm setting of a coffee shop.