Perhaps curcumin works for one , not another. Perhaps the same curcumin works now, but not later. Or perhaps you'll never knows if it works at all. Being able to measure it is difficult. Welcome to the game.

It is a process that combines both thinking and feeling. (Intuition). Perhaps one day you step in shit. But the next day you find a flower. There is no right or wrong answer.

I do believe there are "charlatans" -- if that's what you want to call it -- who are attuned to this type of flow, or practice.