It means "correlations must first be confirmed as real".
No, it still just means "correlations must first be confirmed as real". If they're not, they're false correlations.
Agreed. A false correlation is just a coincidence.
I don't know how many times I need to tell you that I have never claimed that DDT was the only cause of polio, but here I'm doing it... again -.- A while back, I referenced and quoted an article from Tessa Lena, published at Children's Health Defense. Here's part of it that delves into the -many- potential causes of polio:
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Poliomyelitis-like symptoms caused by poisoning
In 1951, Dr. Ralph R. Scobey published an article in Archives of Pediatrics, titled “Is the public health law responsible for the poliomyelitis mystery?”
In the article, Scobey investigated the evidence showing the contagiousness (or not) of poliomyelitis — and talked about how the research into complex causes of the disease had been decapitated once the “official” opinion was declared. Among other things, he stated the following:
“Unlimited poliomyelitis research ceased abruptly when this disease was legally made a communicable disease. However, definite progress toward a solution to the problem was being made before the public health law made poliomyelitis a germ or virus disease. For example, it was reported by toxicologists and bacteriologists that poliomyelitis could be produced both by organic and inorganic poisons as well as by bacterial toxins.
“The relationship of this disease to beriberi was also being given consideration. However, these investigations lost support when a germ or virus came to be considered by some to be the full and final answer to the problem. Funds for poliomyelitis research were from then on designated for the investigation of the infectious theory only.
“There are today many investigators who have strong evidence contradicting the infectious theory. Vitamin and mineral deficiency, poison, allergy and other theories are being presented to explain the mystery, but these men, because of the public health law and the limited ability to obtain funds or cooperation from any source cannot work freely on the problem of [the] cause of poliomyelitis.
“At one time or another the classical dietary deficiency diseases, beriberi and pellagra, and even sunstroke, have been considered to be communicable infectious diseases. If by law any one, or all of these diseases, had been made a reportable communicable disease, it is obvious that today it would legally be a germ disease and a search for the causative germ might still be in progress.
“If beriberi and pellagra had been made reportable communicable diseases, it is conceivable that the epochal studies on vitamins by Funk and subsequent workers could have been ignored in the search for the infectious agent as the etiological factor in these diseases. The progress of medicine would have been seriously retarded.
“The time is long past due for careful reappraisal of the poliomyelitis problem and for many capable workers with various opinions regarding the cause of the disease to be given the opportunity to work and the funds with which to work. The implications of the public health law that poliomyelitis is an infectious communicable disease must be reconsidered if progress is to be made.”
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Source:
A Story About Polio, Pesticides and the Meaning of Science | Children's Health Defense