Trump's use of hypnotic language

[Major Nikon]

63. You are completely misunderstanding the term

Placebo's often have efficacy over doing nothing at all. Whether or not a drug or treatment is considered efficacious is the response compared to that of the placebo.

The Active drug group (A): who receive the active test drug.
The Placebo drug group (P): who receive a placebo drug that simulates the active drug.
The Natural history group (NH): who receive no treatment of any kind (and whose condition, therefore, is allowed to run its natural course).
The outcomes within each group are observed, and compared with each other, allowing us to measure:

The efficacy of the active drug's treatment: the difference between A and NH (i.e., A-NH).
The efficacy of the active drug's active ingredient: the difference between A and P (i.e., A-P).
The magnitude of the placebo response: the difference between P and NH (i.e., P-NH).

It is a matter of interpretation whether the value of P-NH indicates the efficacy of the entire treatment process or the magnitude of the "placebo response". The results of these comparisons then determine whether or not a particular drug is considered efficacious.

https://en.wikipedia.org/wiki/Placebo-controlled_study