Quote Originally Posted by Newsman
If you're set up just right, you'll see a car coming up behind you and if, for example, it passes you on the left you'll see the car drive out of your rearview mirror and right into your side mirror.

As it leaves your side mirror, it'll show up in your peripheral vision.

It does take a little getting used to, but I've been driving that way for a couple of years now and feel very safe.

Of course, if I'm changing lanes, I'll usually take a quick glance, just in case, but there has never been a time when a car has been there that I didn't know about.
I used to do this too. You're basically relying on your memory of a random number of moving objects moving throughout your peripheral vision to know when something has moved into your blind spot. This becomes exponentially difficult as the number of objects increases, and your brain has a way of "forgetting" about objects that aren't moving when it's trying to keep track of a number of others that are moving. Hopefully it won't take a major accident to prove to you how dangerous this is. (In other words, don't get complacent and stop taking that "quick glance" - trust me, one day someone's going to be "hanging out" there and you'll be glad you looked).

Anyone who plays "Brain Age" on the Nintendo DS will know what I'm talking about.