Hey umm so … homeopathy. There is a case to be made --hear me out here please-- that it might have been effective once, but now we’ve got millions of “practitioners” doing things that clearly do not work.
The reasoning is obvious.
The concentration of practitioners within the population is clearly too damn high (insert meme here). To show how effective it can truly be, all we need to do is to dilute the ratio … by a lot.