Are you suggesting Dr. Seligman, the author of the book the post you linked to is reviewing, has no medical experience? He's a very prominent doctor and at one

Are you suggesting Dr. Seligman, the author of the book the post you linked to is reviewing, has no medical experience? He's a very prominent doctor and at one point was President of the APA. You can read more about his credentials here: https://en.wikipedia.org/wiki/Martin_Seligman https://en.wikipedia.org/wiki/Martin_Seligman