That's the placebo effect, not the placebo itself. This is as simple as I can explain it. 1) People test a new medicine. 2) That medicine does no better than

That's the placebo effect, not the placebo itself. This is as simple as I can explain it. 1) People test a new medicine. 2) That medicine does no better than placebo. 3) That medicine does not work and the makers go back to the drawing board. They don't sit around and wonder why that medicine "works", because it doesn't. Nor do they sell it as medicine, or claim it is effective, because it isn't. Homeopathy is no more interesting than every single failed medicine plus every single non-medical substance a person can put in their mouth.