View source for KooMar's take on common sense

Apparently, what scientists with relativity and QM have been trying to
get at is that one must forgo the notion of common sense.

Logic is completely different from common sense. Common sense is taken
for granted, logic is not.

I will tell you about this incident that happened to me when i went to
india.

I went to a movie, got a ticket and took a seat on a random chair. At
that time, i was doing my Electrical Engineering in United States.
This is a big deal in India.
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Here's my "intellectual" background. I graduated high school, by 17.
And in high school, i already completed the first year of college with
just Advanced Placements test. So, during my first year of college, i
was doing second year of Electrical Engineering program. By 19, I was
already in graduate level Quantum Mechanics classes and many graduate
level Engineering classes in VLSI design. By 19 1/2, i even had
convinced Dr. Agarwal(IEEE fellow, ACM fellow) so much that he let me
do Ph.D level research in VLSI chip testing with him.

Now, now, at 20 1/2, however, i am just a college dropout with a grim
future because i preoccupied myself with my pet research and building
lego robots, so much that i ended up failing college.
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Back to the situation.

The usher critized me for my lack of common sense because the tickets
have seat numbers on them. And he in fact, even called me an idiot,
since i didn't understand this simple logic.

However, here's the deal. In the US, you can take any seat inside a
movie theather. This usher, was about 30 and bald. And he looked like
he did not even have a decent 10th grade school education. His common
sense was not my common sense.

However, both of our logic was correct because our logics had a basis.

May be, you can see where i am going with the idea of common sense.
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To which he replies:<br>
Common sense is little more than the ability to spot a fucking contradiction. Go fuck yourself.

You missed my point. My point was that common sense is taken for granted. It is presumed.
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In the above situation,

The usher took his logic for granted. He assumed that everybody is supposed to know that people should take a seat according to the seat numbers on their tickets. That's his common sense.

On the other hand, i took it for granted that I can sit on any seat,
because that's how i am used to. That's my common sense.
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On the other hand, logic is not taken for granted. Logic is derived on
axomatic systems and people who use logic do not take these rules of
granted and they are aware of the axioms of their systems. They know
that axioms cannot be proved within their logical system. They
understand that the validity of any of their conclusions can make are
only valid within their system.

That's the difference between using logic and common sense.