Re: Speaking of Keystone...

[P3D Michael Kersenbrock <michaelk@xxxxxxxxxxxxxxxxxx>]

> >I gather that it 
> >improved the viewing, in one way or another.  How is this so?
> 
> As I understand it, there is no valid reason.  Something like 
> advertising "hypo" ("see, our product has this feature that

Maybe because it made the card physically "3D"?  Kind-of along
the lines of wide curved movie screens were claimed to be "3D"?

Curved ones seem to feel more "substantial" when held because of
the increased quasi-thickness.  

Does Paul Wing's book have any reference to this sort of thing?  I need
to buy a copy while (if) they're still available.  Hopefully someone will
be selling them at the convention?  :-)

Mike K.

P.S. - I suppose there *could* have been a non-marketting reason.  It seems
       that it might make the card stiffer as well.  The cards are curved in
       a way to make it stiffer in the long direction -- and the cards are 
       usually held by "clips" on the long-ends of the card.


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