Not claiming to have read the source that thoroughly, and there are parts of the analysis that I’m unfamiliar with; but you could get this outcome if there were more bikers than hockey players, even if biking was no more dangerous than hockey.

Thank you. I think the decades-old chemistry-class flashback distracted me from thoroughly absorbing the full post!

Thank you (4 now added!)

They told me at school that ‘p’ meant ‘negative log’. So ‘pH’ means ‘the negative log of the concentration of Hydrogen ions in moles/litre’.

pH 1 is 1 x 10^-1 (strong acid)

pH 7 is 1 x 10^-7 (neutral)

pH 14 is 1 x 10^-14 (alkaline)

(Chemistry was a long time ago, though)