Tony, am I missing something here? You introduced the word "viable". First you say this:
Each time you are talking about the same thing: how a scenario of people wearing helmets for higher risk journeys but not for lower risk explains the statistics you are seeing.
Nick
Yes, I think this must be a misunderstanding Nick. You spoke of the scenario of people wearing helmets for higher risk journeys but not for lower risk, illustrated by your saying "I sometimes wear one and sometimes I don't".
You followed with: "Your essential claim was that if these things we were hearing were true, then a certain section of the population must be behaving irrationally. I showed that the outcome could be the result of rational decisions about when to wear a helmet."
It was that last sentence which I say is not a viable way to refute when the subject of the thread concerned people who would always wear a helmet. They would not be making variable decisions on helmet wearing.
To explain the thread, my overall position is that if the proselytising helmet wearers are right in their claims about the death or brain damage outcome of their accident if they hadn't worn a helmet, it leaves these conclusions:
1) Since this proselytising group are so numerous, one would expect a comparable and substantial incidence of actual death/brain damage in the substantial non-helmet wearing group.
2) The actual cyclist deaths and by implication, brain damage, are very low and cannot be enough to satisfy (1) above, especially since a proportion of those deaths are of helmet wearers.
3) Therefore the helmet wearing proselytisers are not as safe as the non-helmet wearers, since they are suffering the higher ratio of potentially death/brain damage threatening incidents they report.
There is no accurate quantification in this proposal, nor is one necessary, since I'm only showing a direction of trend, not it's degree.
Of course, it is probably true that the accounts of death/brain damage etc are an exaggeration and the outcomes would not have been as claimed.
Either way I don't mind, since both discredit the annoying proselytisers, they are either inaccurate in their claims or less safe on the road, and showing this was my objective with this thread.
Unfortunately it was turned into a thread about the pros and cons of helmet wearing, well off subject.
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