This book must be very important to you since you have created accounts on so many very different forums just to post about it.
There are already some excellent discussions here on the topic of placebo. But just yesterday I came across another interesting angle. In the august issue of Happy Science Monthly, Ryuho Okawa mentions that doctors tend to be overly pessimistic simply because of their profession: Their lot in life is to see a lot more people die than does an ordinary person, so they tend to become morbid by association. This is kind of creepy when we bear in mind that in testing new products, the researchers have to take care not to tell the doctor which is the placebo, because even without saying anything,
the belief of the doctor influences the patient. I am still a big fan of doctors, but it may be an idea to consciously adjust our optimism upward a bit after talking with them, just to correct for their professional pessimism. After all, the patients they see again and again are those who don't improve... the rest they see only rarely.