I keep seeing references to the human brain being “the most powerful computer in the world” (as well as sometimes “the most complex thing in the universe” – how would we know?). But is the human brain really more complex, or more powerful than that of the other primates or great whales etc? The human brain differs from them of course (as, indeed, they differ from each other) but is it actually any more complex?
Francis Blake, London N17
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