The only thing that saved my life was my awareness that motor vehicle operators often drive recklessly and often attempt to intimidate bicyclists by close-passing and performing other dangerous maneuvers like cutting bicyclists off on the road. Many drivers become irrationally enraged and unhinged at the sight of a bicyclist on the road. I have dual rearview mirrors on my bike, and had been watching this person for several hundred yards approach me from behind, so I knew they were there.