On Apr 3, 6:09*am, Mxsmanic wrote:

The reason drivers do not seem to see motorcycles or bicycles is very
different. They actually _do_ see these things, but they unconsciously regard
them as not important to their own safety, so they ignore them.

Wrong, and nonsensical.
http://en.wikipedia.org/wiki/Inattentional_blindness
http://en.wikipedia.org/wiki/Attention
http://en.wikipedia.org/wiki/Attentional_Blink
http://en.wikipedia.org/wiki/Attentional_shift
http://en.wikipedia.org/wiki/Change_blindness
http://en.wikipedia.org/wiki/Visual_perception
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- gpsman