I mean... good luck dodging someone who completely ignores a stale red and just floors it through an intersection (almost got jackknifed by one of those dumbasses just last week...) or someone who decides they want to merge into your lane and don't care that it is "bumper to bumper" on the highway.

Defensive driving is about minimizing the likelihood of a crash while acknowledging some are just unavoidable. Hollywood stunt driving is the idea of being able to swerve into oncoming traffic to avoid getting pti maneuver'd.