The discourse around cycling safety is infuriating.<p>It's bad enough when people jump in with incomplete multivariate comparisons and jump straight to a conclusion. You can't just compare cyclist fatalities between two cities on different sides of the planet without also why people are cycling, what they're cycling on, what's been done to cities and roads to make it safer already, etc, etc.<p>Then you throw helmets in. More cyclists wearing helmets died? But wait, your data only shows hospital admissions from RTAs. How many cyclists in helmets rode away from their accidents? How many more road cyclists wear helmets anyway?<p>Then you do a Dr Ian Walker and start muddying all that with psychology.<p>Then what happens if your enforce helmets?! Everybody stops cycling and obesity rates rocket? What data says that?<p>It's a mess. There are so many variables. Too many variables. We chase after them, trying to explain human behaviour and prove that helmets are magic, or evil; quickly forgetting how easy it is to die by one simple head trauma, and how easy it is suffer that coming off a bike.<p>Yes, safe infrastructure appears to be a massive factor, but cities and countries that need it most can't just regenerate their road networks overnight. We should be talking about helmets as a stop-gap; a way to make cycling safer right now with the goal that regeneration follows to improve things for everyone.