Well duh. But that’s not the point. Experts often disagree in their conclusions, but we weren’t arguing about conclusions, but rather the methods used to reach them. That is what you and Kimstu spent so much time telling me I was wrong about. You implied I was crazy to ask the exact same question that the author answers in the quote. The answer doesn’t matter, it’s the fact he considers it a legitimate, significant issue that demonstrates I was right all along.