Yeah, I would love to see that.

But actually, he has a point, but not to the extend that he thinks he has.
Working on an illness using your mind (for example: imagine cancer as little monsters, and your immune system as (nicer looking) monsters that eat the cancer monsters) has proven to _help_ cure the illness. And regarding depression, it might as well cure it in many cases.
however, the study mentioned earlier is regarded as extremely imprecise. No information is available on the patient groups. There are forms of depression that are proven to be of organic cause (like a lack in production of endorphin*). Most doctors I talked with think that the study was only checking the effect of placebos vs. drugs on those patients that clearly did not suffer from that kind of depression. If this is right, the thought that placebos work as good as real drugs wouldn't be amazing anymore.

Yet, I would really like to see one of those "you can heal any illness just using your own mind" people handle some illnesses, most notably AIDS and cancer.

cu,
sven