Page 68 - BBC Focus - August 2017
P. 68

IN FOCUS | CONSCIOUSNESS




                                                                                    “Consciousness is

                                                                                    not a miraculous
          2 exist in the first place? Physical sciences seem   BELOW: Was Karl Popper, an
          unable to answer these fundamental questions. To   influential 20th-Century   phenomenon that
                                                          philosopher, wrong to dismiss
          use a metaphor, the mystery of consciousness is about
                                                          panpsychism as nonsense?
          explaining the ‘magic of turning the water of material                    arises out of nothing
          processes’ into the ‘wine of conscious experiences’.
          Many scientists and philosophers have tried and                           in the brain, but
          failed to expose the trick for a long time.
           Panpsychists try to solve this mystery by appealing                      something that
          to the radical hypothesis that everything in the
          Universe, including the subatomic particles of the
          brain, is conscious. They say that if the constituents                    exists everywhere in
          of the brain are already conscious, then it is not much
          of a stretch to suggest that they give rise to a full-scale               the Universe”
          human consciousness when they are gathered and
          arranged with the necessary complexity. It is not a
          surprise that the ‘wine of consciousness’ is produced
          from the ‘water of material processes’ if the water
          already contains wine.
           So what is the consciousness of subatomic
          particles? Panpsychists do not necessarily say that
          these particles have conscious experiences in the
          same way that humans do. Particles have no sensory
          apparatus such as eyes or ears, so they do not enjoy
          visual or auditory experiences as we do; they must
          encounter something much more primitive. That is
          why some panpsychists call the consciousness of
          these entities ‘protoconsciousness’. Physical sciences
          postulate many fundamental features of the Universe,
          such as space-time, mass, charge and spin. These
          features are fundamental because they cannot be
          explained in terms of more basic features.
          Panpsychists say that the consciousness of subatomic
          particles is comparable to these fundamental
          features. They are the ultimate building blocks of
          reality that ground our fully fledged consciousness.
          Panpsychism offers a simple yet elegant solution to
          the mystery of consciousness. Consciousness is not a
          miraculous phenomenon that arises out of nothing in
          the brain, but something that exists everywhere in
          the Universe.
           Exactly how the consciousness of subatomic
          particles can combine to form a full-scale human
          consciousness is a matter of dispute. Some
          panpsychists hypothesise that smaller conscious
          experiences merge or fuse to yield full-scale human
          conscious experiences. Some other panpsychists
          hypothesise that when an aggregate of small
          conscious experiences reaches a certain level of   ABOVE:   thought experiment. Take a sentence of five words,
                                                          Subatomic
          complexity, a full-scale human consciousness arises         say, ‘It is a beautiful day’. Gather five people and
                                                          particles can
          as an emergent property. These hypotheses are   help us     assign one of the words to each person. Stand these
          inevitably speculative as we do not have direct access   explain the   people in a row and let each contemplate their own
                                                          world, but
          to the consciousness of subatomic particles.                word as intently as possible. Is there now a
                                                          could they
           Critics argue that panpsychism faces a serious   also be   consciousness of the entire group contemplating the
          problem of its own: the combination problem. The   conscious?  whole sentence? No. Members of the group are
          combination problem was originally introduced by            individually conscious but their presence does not
          William James, the so-called father of American             give rise to a unified consciousness of the entire group
          psychology. James presents the problem with this            contemplating the whole sentence.



       68
   63   64   65   66   67   68   69   70   71   72   73