Few days ago I was
sewing my sweater to cover two holes in the elbow of the
sleeves with a patch. To do such thing you have to put one hand inside the sleeve
and to sew without looking the needle, but only “feeling” it with your fingers. Since you cannot see it, you have to calculate and to
guess where it will get out of the woven. I call it a type of
prediction.
The patch on the sleeve of my sweater. Can you easily calculate where the needle will come out? |
What is logic? I think
as something as “logical” when it follows a rule of cause-effect
and it is a way to demonstrate or discover something true. Logic is
the way to seek the truth and understand the reality of things. As
Aristotle says, analytical – or logical – reasoning is
demonstrative and impersonal. The reasoning is a scientific evidence
to prove the truth, which is unchangeable no matter who is the
listener.
My question is: If I
apply all rules of logic, can I predict the future? Can I predict how
the day of tomorrow will unfold? Can I predict elections' outcome?
Can I predict the stock market performance? Fundamentally, I think it
is possible – at least to some point.
Of course no prudent
man will ever guarantee the future, neither a portfolio manager will
declare how much his investment fund will perform in one year time.
The law requires all financial institutions to say ahead of a
investment that “past performance is not
indicative of future results”. We can all agree on that. It is a
fact of life that the future is unknown and we all accept that. We
can only rely on one person's claim that a fact in the future will
happen as long as he has control and power over its happening. We all
trust our partner's promise that she will bake a cake for our
birthday party or a student will graduate next session. They all have
enough power over their situation to make it possible. But what
happen when we have no control over the outcome? Can we predict it?
Ideally
I believe it is possible. I agree with the quant hedge fund funder
Jim Simons when he says that “past performance is
indicative of future results”. The issue is not whether we have
control over the outcome, but if we know all variables that determine
the structure of the question. It is the knowledge or the ability to
predict where the needle will get out of the patch without being able
to see it. We can predict how the day of tomorrow will unfold if we
know what all people will do, who will encounter who and what, how
they will respond to their interrelation, what will be the weather,
their boss' requests, their partner reaction. If we know all people
habits, how they respond to change, requests and challenge, I believe
it is possible to build a reliable model of the future. (On the idea
that life is nothing but a bunch of habit, read C. Duhigg, The Power
Of Habits, ch. 1 and 7).
One
useful and money-making field where to build a model of the future is
the financial investments. What determines the value of a stock? I
will work on that on the following days. (Ehi, I have control over
that, so I can predict it!).
UPDATE. Hey, I wrote Inquiry over Logic of Investments. Any idea?
UPDATE. Hey, I wrote Inquiry over Logic of Investments. Any idea?