There is an open area concerning the 'fact' that higher intelligence is
itself limited and supposes a higher order still. In this, we might also
consider that our very idea of 'higher' might be called into question.
Some evolutionary biologists say that we cannot even call human
intelligence 'higher' than that of any other species.
-- Tony Blake>Well, certainly some evolutionary biologists do not possess higher intelligence than that of any other species if this is their hypothesis.
"The fact that higher intelligence is itself limited and supposes a higher order still" is contained in the thought of Anselm from the eleventh century, and is subsumed within his ontological proof for the existence of God. A good reference work on the subtleties of the argument and on previous attempts to refute it can be found in Charles Hartshorne's "Anselm's Discovery" (1965).
------------------------------------------------------------------------ Reilly Jones | Philosophy of Technology: Reilly@compuserve.com | The rational, moral and political relations | between 'How we create' and 'Why we create'