its not about eliminating danger, its about minimising danger, you cant be totally safe in any part of life, unless you simply lock yourself in your room and never step outside..
if you train yourself to watch ahead and predict traffic movements, while wearing appropriate gear, your going to minimise the risk of something going wrong, but you'll never be able to stop that stupid son of a b$*ch next to you in there car changing lanes right into you, or the SUV that slams into your ass while your at a stop light, then manages to find the brake pedal when his on TOP of your chest, breaking 43 bones and puncturing your lung..
but hey, this things happen.. and as we say here in australia; when sh*t happens, get a shovel.