80%+ of severe injury and death on a bicycle is caused by motor vehicles, or complications of motor vehicle involvement.
Which would mean ~1 in 5 have absolutely nothing to do with a motor vehicle. That’s significant.
There is considerable evidence that everyone wearing a helmet in a car would save vastly more lives and prevent severe head injury
Then that should be an easy [citation needed] for you because my searches are coming up blank for actual studies. Lots of assertions of it, but I’m not finding anything in terms of actual data.
It’s very easy, on the other hand, to find comprehensive meta analyses on the efficacy of helmet use.
It’s also worth noting that the introduction makes a point of calling out another common online assertion that you repeated – that helmets make people engage in more risk-taking behavior – as false:
There has already been an extensive peer-reviewed literature review conducted by Esmaeilikia et al.5, which found little to no support for increased risk-taking when cyclists use helmets and if anything, they cycled with more caution.
I don’t feel those people should be called stupid for their choice.
I don’t think they’re stupid. I think they’re bad at risk analysis. That’s a pretty inherent feature of humans. It’s the reason I want to see actual data.
Heavily depends, IMO.
Nested threads are great temporary discussion of a specific story or idea. They’re absolutely miserable for long-running discussions. New posts get lost in the tree and information ends up scattered across multiple threads as a result.
It’s also been my personal experience that the nested threads format just doesn’t seem to build communities in the same way forums did. I have real-life friendships that were made on forums decades ago and I never had that experience with reddit despite being a very early user.
I don’t think that’s entirely due to the ephemeral format, but I do think it plays a part in it. A deep thread between two people on Reddit might last a few hours and a dozen replies before it falls off the page. On forums threads running months or years were pretty common, and that kind of engagement with the same people certainly changes how your relationships develop with them.