A unified theory of New York cycling. Replace all “New York” “Sydney”:

Bikes can and should behave much more like cars than pedestrians. They should ride on the road, not the sidewalk. They should stop at lights, and pedestrians should be able to trust them to do so. They should use lights at night. And - of course, duh - they should ride in the right direction on one-way streets. None of this is a question of being polite; it’s the law. But in stark contrast to motorists, nearly all of whom follow nearly all the rules, most cyclists seem to treat the rules of the road as strictly optional. They’re still in the human-powered mindset of pedestrians, who feel pretty much completely unconstrained by rules.