``[symbolic systems cannot be] mapped onto the world or onto brains, in that material systems in the world are infinite, not merely in the mathematical sense of continuity, but in the sense of boundless complexity that is exemplified by the olfactory environment..... [computational models] can only approximate continuous world dynamics."
Walter J. Freeman in Societies of Brains: A Study in the Neuroscience of Love and Hate.. Lawrence Erlbaum, 1995. pp 103.
``... prior attempts [to simulate what brains do] have failed, because none has incorporated a hierarchy of macroscopic state transitions induced by microscopic fluctuations.''
Walter J. Freeman in Societies of Brains: A Study in the Neuroscience of Love and Hate.. Lawrence Erlbaum, 1995. pp 104.
