There is a lot of truth to all that, the farther down you look the more your brain can take in. You can't take in what you can't see.
About the blind spot issue, I got two convex mirrors for my Box. They are for big trucks, I know. But the nice thing about convex mirrors is that you see everything around you, including a big chunk of your blind spot, and you dont need to look around the entire mirror to catch what you need to see.
Cost me about 4 dollars total for 2 convex mirrors.
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