So for placebo you should also have a lot of people reporting that "greenish screen" helps, and you should have a green option in flux.
I think the best way to understand a placebo effect is this: If I don't give 100 patients a drug to cure a cough and 30% stop coughing, I have a baseline.
If I give 100 patients a drug to cure a cough and 90% stop coughing I can say my drug is effective.
If I give 100 patients a sugar pill and tell them it will cure a cough and 60% stop coughing I can say this is better than my baseline and the placebo effect is present.
If I give 100 patients a sugar pill and tell them it will cure a sneeze and 60% stop coughing and nobody stops sneezing, then I need to revisit my previous study to find out if sugar can cure a cough. But in this case you don't have a placebo effect because the patients believed the pill was to address a sneeze.
No, it's not. The definition of placebo effect is that a placebo works differently from not placebo.
> Otherwise big pharma would just replace all drugs with sugar pills.
No, because in many cases drugs work better than placebo.