Causality & Consciousness
Causality
Oh dear, I seem to have developed a penchant for
rabbiting on about really, really tough subjects.
Aristotle was big on causality – the answer to the
question ‘Why?’ He defined four different types of cause. Back to Aristotle in
a bit.
Why does water boil when it is heated? A reasonably
sophisticated approach would start with what water is. When heat energy is applied to a volume of water, the molecules
become ‘excited’ and bounce off one another until the water changes state –
from a liquid to a gas. Why do water molecules behave in this way? I’m getting
out of my depth; but I’m sure scientists have an answer to this and to
questions I have not thought to ask.
Why do apples fall from trees? All material bodies
are attracted to each other by the force of what we have called, since Newton’s
day, Gravity. The earth and the apple attract each other. What else do we know
about Gravity? We know that the force of attraction is proportional to the
masses of the bodies and inversely proportional to the square of the distance
between them. Anything else? Well, the force of gravity is defined as: F = mg,
where m is the mass of the body and g is a constant vector with an average
magnitude of 9.81 m/s2. Why not a
nice round 10.00
m/s2? Science has no
answer to this question. Don’t blame Science. It is scientists themselves who
tell us that Science has no way of knowing. It’s not a scientific
question. And yet Dawkins declares that
the existence of God is a scientific question. Is this Dawkins being silly? God is a
scientific question – Gravity is not? Gravity is simply one of the givens
Science has to work with (the speed of light is another). We revere scientists
for their discoveries. When they go beyond Science they become less reverend
(less deserving of reverence).
The Why of Gravity is one of the whys to which there
is only one type of answer: What is Gravity for?
Thinking
about Consciousness
It makes your head ache, doesn't it? Defining it is
a nightmare. It’s one of those things that we think understand, like ‘time’;
but when asked what it is, we are stumped.
It seems to me, and I’m about to reveal depths of
naivety here, that consciousness is always about
something. I am conscious of a sound
or a smell. Sometimes I even become conscious of being conscious of something. I
can become conscious of my own existence. (Cogito ergo sum). There is a deal of
‘intentionality’ about consciousness. Intentionality is ‘the quality of mental
states (e.g. thoughts, beliefs, desires, hopes) which consists in their being
directed towards some object or state of affairs.’
I'm going to do more work on Aristotle. I promise.
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