G'morning Bob, 

 BK>>  That is so common as to be normal.

 MM> At the lowest levels ... but when one tries explaining to
 MM> adult poor readers that people rarely see what's really
 MM> there but rather expectation, denial and lastly reality,
 MM> one has to waste time proving it individually - simply
 MM> because it is both common, normal and unexpected...

 BK>  I have seen it demonstrated as a trick. Hadn't thought it out in
 BK>  that detail.

Magicians depend on it - because that's how the
the brain manages to perceive the world as a
a coherent whole without having to re-identify
each component everytime it's sighted....

 BK> ... You shall have the prune juice, and the prune juice will set you
 BK> free.

Gee - thanks, Mum....

:-)
 
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