"Water is not light" contd. :-)

You said that there is no "filling up" of photosites.  But when you "fill up" a photosite, not only does it register full white, but booming occurs, affecting adjascent photosites.  Well, this is just what I've read -- feel free to Google!  I'm no sensor expert.

But your claim that photosites do not fill up seems to contradict what I've read about how the process works.  It seems more analagous to the water example than you'd seemingly like to admit, even though, of course, it's not the same.  It's just an analogy.

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Gary W.