I still think it's not useful to compare fatalities per billion miles, especially cycling and driving (and especially if that includes highway driving, which is clearly not something you could use a bike for instead).

Iceland had several years with zero or one reported cycling fatalities, I can't find road fatalities quickly but I assume driving is less safe there, especially if I'm allowed to cherry-pick a zero-fatality year (where you'd have 0 fatalities per billion miles cycled).