Is there “no evidence” that using a parachute helps prevent injuries when jumping out of planes? This was the conclusion of a cute paper in the BMJ, which pointed out that as far as they could tell, nobody had ever done a study proving parachutes helped. Their point was that “evidence” isn’t the same thing as “peer-reviewed journal articles”. So maybe we should stop demanding journal articles, and accept informal evidence as valid?

Well…

https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=do+parachute+help+prevent+injuries%3F&btnG=