Is Edgar Keith a liar?

Not a liar, he has special abilities. This is an example. A professor at Harvard University tried to prove that he was a liar, but it turned out that he had extraordinary ability.

With various successful medical cases and in-depth reports from many media, Kathy's reputation has spread more widely. Dr Hugo mü nsterberg, a representative of Harvard University who is famous for exposing the deception of "super power", visited Kathy for the purpose of exposing Kathy. However, after a week's investigation, interviewing patients, doctors and many witnesses present, and personally participating in the whole process of several explanations, the professor finally affirmed the legitimacy and effectiveness of the explanation.