and i have been driving for 42 years. i look over my shoulder to check my blind spot multiple times a day, every day since i got my drivers license.
i have never rear ended anyone.
Well I been driving 54 years and I rear ended somebody when I turned my head when 16 to look at yellow poka dot bikini on Ft Lauderdale beach.
Point being , those are both anecdotal experiences, means little in the big picture.
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correct just differend driving experiences.

so the concept that looking over the shoulder to check your blind spot will make you rear end someone is equally absurd.
Nope, and nobody said it was, my original point, not to repeat myself, anytime taking your eyes off the road in front of you, is less stopping distance you have for the unexpected, PERIOD. And nobody will ever admit post accident that was a contributing factor.
Since one only needs to misjudge one's stopping distance by a mere inch, and a single millesecond by itself for example at 60mph is greatet then that. I suspect most rear end accidents are because of a misjudgment more then a single inch.

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first line is incorrect. i posted that people should turn your head around and check your blind spot. not a charger posted This whole "turn your head around/look over your shoulder" nonsense is just that. It's never a good idea to do that.
the second point is correct. taking your eyes off the road for ANYTHING including checking your mirrors can be a contributing factor in a accident



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in my opinion trying to check your blind spot by looking in the mirrors takes longer and is much more hazardous than just turning your head around to check your blind spot.
You should try to measure your opinion of time, also understanding, it takes a conscious decision first of which way to turn ones head, where to focus you eyes, focus your eyes, interpret the other cars, determine, thier positions, their relative speeds,,their intentions (are they also turning their heads, make sense of what you see, then decide its sufficient, turn your head back in the direction you are haeded, and refocus. I suspect just moving your eyes, is a factor 10? times faster and at 60 mph that could a lot of distance.


no you should actually check your concept of time. if you only use your mirrors in a car without a blind spot mirror on your regular mirror. you need to look TWICE at your mirror to see beside your car and then move your head and body to see the blind spot. just quickly turning your head takes less time than that.and to check your blind spot you only need to turn it a little, you can see ahead of you in your peripheral vision.
i see people doing this daily.just using their mirror changing lanes........... they signal to change lanes, you are in the lane next to them slightly behind their blind spot. you slightly slow down to let them change lanes. they check their mirror to see if it's clear. see you and slow down even more until you pass them. if they had actually turned their head around to check their blind spot they would have seen there was plenty of room to change lanes safely. they wouldn't have slowed down and traffic behind them wouldn't have slowed down and the traffic behind them wouldn't have slowed down. this is the biggest cause of what you probably know well, MERGING DELAYS.



as the link i posted earlier. the Wisconsin, and probably every other state in the USA, DMV DRIVER TRAINING MANUAL RECOMMENDS looking over your shoulder to check your blind spot before changing lanes. it has been that way since i got my drivers license and probably been that way MUCH MUCH longer than that.
Guess they never drove a Class 8 with mirrors.

if you had checked the link there was never a reference about driving a TRUCK. the manual linked is for beginning drivers learning to drive a CAR for the first time..