IME the argument on bike helmets is a little different: it's not that requiring helmets will encourage riskier biking behaviour, it's that requiring helmets wil

IME the argument on bike helmets is a little different: it's not that requiring helmets will encourage riskier biking behaviour, it's that requiring helmets will shift people to drive instead (and that an extra car on the road is increasing danger to _others_). It may still be a bogus argument, but it's definitely distinct from the risk compensation argument given in the article.