Despite what television would have you believe, no doctor or scientist is knowledgeable in all fields of their craft. That's why they call in experts when a more detailed analysis is needed.
I understand that perfectly, however, you ever hear the old saying "don't believe everything you read on the enternet". Absolutely any anonymous Joe Shmoe poster nobody knows can make any claim they can dream up, post it in the most convincing manner they wish. Its all rubbish without any references, or links to a reputable source. Without that its just white noise on the enternet. I thought we all knew this.....