d 
&gt; &gt; have a practical focus rather than being an academic exercise.
&gt; &gt; 
&gt; &gt; Adam
&gt; 
&gt; 
&gt; 

What the primitive informational unit can be, if it is not a sign, escapes
me.  And if it is a sign, then the underlying position for accommodating
it is not the one on which you rely and in which you seem very well
versed.

I would respectfully submit that the position you take is a limited one
for an upper level ontology.  I would at the same time recognize that it
fits neatly with a co