Once again, this is not only without evidence, decades of literature and research exactly on this ("risk compensation" theories for safety devices, seat-belts, helmets etc.) finds the opposite at the population level. It's a clever sounding argument without empirical support. https://twitter.com/nalepis/status/1248281035726520322 …
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Many people made this argument in papers and articles. It's a way to tell apart people who know the empirical literature vs people who have their mind up and are looking for excuses—or can't admit they were wrong. By all means, let's keep an eye on this! But no reason to assume.
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Can an intervention that increases safety decrease total safety by increasing risk-taking? Clever idea, and people have suggested this forever for, well, every safety device, basically. Can you find individual examples? Sure. But at the population level it just doesn't work.
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Replying to @zeynep
Funny twist on this (and still one-off not a counter to your point) - study that showed drivers passed cyclists more closely if they were wearing a helmet. So cyclist didn't choose to up risk, but other actor did. https://www.sciencedaily.com/releases/2006/09/060911102200.htm …
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Replying to @emilyabell @zeynep
In 1979 Ireland introduced mandatory seatbelt wearing for front seat passengers. In that year the wearing rate increased from 25% to 50%. The pattern recorded in the official road death figures for 1979 was a 4% increase in car occupant deaths.
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A particular increase was noted in so called single vehicle collisions which are typically associated with inappropriately high driver speeds.
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Shane Foran Retweeted I AM JD
Shane Foran added,
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Replying to @galwaycyclist @emilyabell
Can you stop spamming me with anecdotes on a topic that's been studied to death for decades? Thanks.
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Replying to @zeynep @emilyabell
But you made public claims that are incorrect You shouldnt do that.
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No, you are wrong because this topic has been studied extensively. It's not even a controversy or an open question. But I cannot convince every random person. Bye.
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Cheeky 20 miles thrown in today I wasn't expecting. Stupidly went out without my helmet, and had to double back. Felt really unsafe, don't know how people do it permanently.