These are excerpts and elaborations from my book "The Nature of Consciousness"
The Sense of the Mind In our quest for the
ultimate nature of the mind, we are confounded by the very way the mind works.
The more we study it, the less it resembles a mathematical genius. On the
contrary, it appears that the logic employed by the mind when it has to solve a
real problem in a real situation is a very primitive logic, one that we refer
to as “common sense”, very different from the austere formulas of Mathematics
but quite effective for the purposes of surviving in this world. If the mind
was shaped by the world, then the way the mind reasons about the world is a
clue to where it came from and how it works. In emergency situations, our
rational thinking is often powerless. Common sense determines what we do,
regardless of what we think. The puzzling aspect of common sense is that it is
sometimes wrong. There are plenty of
examples in the history of science of "paradoxes" about common-sense
reasoning. Using common-sense reasoning, the Greek philosopher Zeno proved that
Achilles could never overtake a turtle. Using common sense reasoning, one can
easily prove that General Relativity is absurd (a twin that gets younger just
by traveling very far is certainly a paradox for common sense). Common sense
told us that the Earth is flat and at the center of the world. Physics was
grounded on Mathematics and not on common sense precisely because common sense
is so often wrong. There are many situations in
which we teach ourselves to stay “calm”, to avoid reacting impulsively, to use
our brain. These are all situations in which we know our common sense would
lead us to courses of actions that we would probably regret. Why don’t our brains simply
use mathematical logic in all their decisions? Why does our common sense tell
us things that are wrong? Why can't we often resist the power of that
falsehood? Where does common sense come from, and where does its power come
from? Back to the beginning of the chapter "Common Sense" | Back to the index of all chapters |