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352 points keithly | 1 comments | | HN request time: 0.001s | source
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kart23 ◴[] No.41842758[source]
Isn't flossing not supported by science also, but all the news articles said you should keep flossing?
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lesuorac ◴[] No.41843072[source]
Perhaps you'll find it useful that a double-blind study found no improvement in outcome from use of a parachute when jumping out of a helicopter.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC300808/

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hervature ◴[] No.41843112[source]
That's not at all what that "study" says. It is a critique (in poor taste if you ask me) that everything does not require a double-blind study.
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1. mlyle ◴[] No.41844172[source]
> It is a critique (in poor taste if you ask me) that everything does not require a double-blind study.

I think the real point is that systemic reviews often will have a pretty tilted set of included studies, because they are influenced by what things researchers choose to study.

Indeed, you probably couldn't publish a study saying that parachutes work; it's not an interesting enough finding for publication. So the only stuff you'll find, in many cases, are studies that buck the prevailing wisdom.