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"Imagination is more important than knowledge. Knowledge is
limited. Imagination encircles the world." - Einstein
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&gt; MW: If I compare EXIST and KIF I think they are functionally
&gt; fairly similar.
&gt; EXIST is designed with a processing model in mind, whereas KIF is designed
&gt; for exchange. I also think that EXIST is easier to read than KIF. This was
&gt; the main reason for