| This is not an elephant. This is a
tractor. An elephant can be defined as a large
chunk of matter (protons, neutrons, electrons etc) arranged in very
special ways. Arranged in different ways, the same "matter". may
become what we call a tractor, or a rock, or a star, an oak tree, a worm,
or whatever. The thing is not so much the thing. The thing is more like
the pattern, the structure. Just like a great painting is not so much about the paint itself, but rather about a visual pattern.
Take a look at yourself. You soon realise that most parts actually can be
exchanged, as long as a replacing part will fulfill the functions of the
original part. But what about the brain? If I loose a leg and have it
replaced, no big deal. But if a brain transplant was suggested most of us
would probably think twice, and for good reasons. Evidence suggests that
the brain is the place where your life is taking place. But the brain is
made of the same stuff (matter) as everything else around, living and non-living,
thinking and non-thinking. What matters, it seems, is not so much the
protons, atoms and molecules, it is rather the way the brain is structured
and the way it operates. So evidence suggests that what you experience
throughout your life is a function of what goes on in your nervous system. You may
well think that you know a little about this world. The beauty of the
mountains, the smell of spring, the music of Bach. The truth is that what
you know about all this, has been filtered and processed many times over
by your nervous system before it even came near your consciousness. Your
senses, your mind and consciousness have not been designed to find out
what the world "really" is like. They were designed to focus on
"relevant" information. Relevant information according to this
definition, is information that in one way or another can improve the
chances for survival and reproduction, in an environment as it looked
thousands and millions of years ago, when our species and its ancestors evolved.
Your brain is a tool, generated by the same
evolutionary process that has generated orchids and elephants, cockroaches
and bacteria. The human brain however has proven to serve us well in
our efforts to survive and reproduce. But it tells us little about what
the world "really" is about. Our consciousness is a product of the history
of mammals, birds and reptiles. We carry all kinds of mental luggage from millions of years of evolution within ourselves. No
wonder the world is a messy place at times.
So, if the brain is its functions, what if we copy its functions?
There is little reason to believe that this copy brain is not as alive and
as self-conscious as the original brain. In any case it would be very hard
to find out. If you get the same responses from two different brains, how
could you ever tell if one is self-conscious and one is not? How do you
know that your neighbour is conscious at all? You don't. You just
assume that, because you somehow feel conscious (well, it happens), and
other people and many other living beings behave in somewhat conscious
ways. That's a good assumption, but no good evidence. It may not be very
easy to map a brain. It wasn't made for easy backup. But in principle it operates under exactly the same
sets of rules as does all other objects around us, such as aeroplanes,
icebergs, tropical storms and slot machines.
So what about my free will? I do experience some kind of control over my
activities, don't I (hrm)? But considering the fact that the brain appears
to be one huge physio chemichal slime, the room for free will seems quite reduced. If we actually were equipped
with something like free will, would we really act the way we do? How do you define "free will"? Shopenhauer made this
comment about this problem: "A man
can do what he will, but not will what he will" and that is pretty
much how the author of this text feels about it.
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