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why does physics math apply so well in finance and biology?

why does physics math apply so well in finance and biology? - Physics Forum

why does physics math apply so well in finance and biology? - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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  #11  
Old 05-27-2005, 07:47 PM
ošin
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Default why does physics math apply so well in finance and biology?

> You're talking in meaningless generalities. Need I repeat the specific

I am a skeptic of all that stuff.


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  #12  
Old 05-27-2005, 07:50 PM
Gregory L. Hansen
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Default why does physics math apply so well in finance and biology?

In article <[Only registered users see links. ]>,
ošin <oš[Only registered users see links. ]> wrote:


That depends in part on the historical theory you refer to. Hitler
couldn't have gone to just any population and roused them up for war--
World War II was a continuation of World War I. Early Christianity
competed with a few other messianic religious like Mithraism and
Zoroastrianism, if I'm getting my religious history right. In the late
19th/early 20th centuries non-Euclidean geometries, alternative mechanics,
and speculation about the nature of space and time were popular, the
difficulty in identifying an absolute rest frame in electromagnetism was
known, and if Einstein hadn't come along we probably would have gotten a
theory of relativity soon enough.

There's the line of thought among some historians that when the time is
right things will happen. And if one person isn't there to make it
happen, someone else will be. Moore's law, which has been followed pretty
reliably for decades, seems to do a pretty convincing show of the
predictability of the advance of a technology driven by the statistical
average of thousands of individuals of varying talent struggling through
school and making their own contributions to the technology in their own
ways. Some will be leaders and innovators, others won't, in the
statistical average there's enough of each that everyone else can forget
the inspiration and sweat and tears that go into it.

That's countered by the "Great Men" school who, for instance, hold
Churchill and Chamberlain versus Nazi Germany as an example of What Might
Have Been.

But Mark D doesn't have to predict what the great men will do. He really
just has to predict how the masses will respond to it, before they
respond. He just has to know what to sell before the price drops, what
to buy before the price shoots up.
--
"We've all heard that a million monkeys banging on a million typewriters
will eventually reproduce the entire works of Shakespeare. Now, thanks to
the Internet, we know this is not true." -- Robert Wilensky
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  #13  
Old 05-27-2005, 08:08 PM
double d
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Default why does physics math apply so well in finance and biology?

Thousands on wall street are breaking the bank while you are being
skeptical. We're talking real money here.
MD

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  #14  
Old 05-27-2005, 08:12 PM
ošin
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Default why does physics math apply so well in finance and biology?

> There's the line of thought among some historians that when the time is

But I say that you cannot predict when the time is right, or what that right
time will produce. The time was right for microprocessors shortly after the
early 60's when TI and Fairchild developed planar transistor technologies
like TTL and MOS came into being. Why did Intel succeed while TI and
Fairchild fail? Then 1000s of micro software companies grew out of it. It
would have been impossible to predict that Microsoft DOS would succeed over
Gary Kildall's CP/M? And why id Microsoft Windows succeed over VisiOn's
TopView, Apple's Lisa, Digital Research's GEM, Quarterdeck's DESQ, Amiga's
Workbench, GeoWorks' Ensemble, IBM's OS/2, Next's NeXTstep or Tandy's
DeskMate. Why did Torvalds' Minix clone Linux succeed over Tannenbaum's
Minix? HOw long did it take to go from TCP/IP to the world wide web? Almost
twenty five years. And who could have seen where TCP/IP would go back in
1969? If you think you can predict anything important in Wall Street or
society as a whole, I have a secret stock pick I would encourage you to buy.



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  #15  
Old 05-27-2005, 08:16 PM
ošin
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Default why does physics math apply so well in finance and biology?

> Thousands on wall street are breaking the bank while you are being

Snake oil peddler. Charlatan. Liar. Cheat. Breaking the bank? Talking real
money here? The only money you are talking about here is the money you take
from the sucker whom you manage to trick into believeing in your bullshit.
**** off, die, and go to hell.




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  #16  
Old 05-27-2005, 08:27 PM
ošin
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Default why does physics math apply so well in finance and biology?

> ads posted by numerous reputable Wall Street firms begging to hire

Reputable Wall Street firms? Oxymoron....


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  #17  
Old 05-27-2005, 08:28 PM
Peter L. Montgomery
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Default why does physics math apply so well in finance and biology?

In article <1117215762.128259.162520@z14g2000cwz.googlegroups .com> "double d" <[Only registered users see links. ]> writes:

If it's truly a Wall Street, then
apply your background in boundary conditions.
--
If we don't protect our forests, the bushlands will become Bushlands.

[Only registered users see links. ] Microsoft Research and CWI Home: Bellevue, WA
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  #18  
Old 05-27-2005, 08:28 PM
T Block
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Default why does physics math apply so well in finance and biology?

> After my PhD in mathematical physics 15 years ago from Harvard, I

There is a funny comedy where the most important thing is to kept a list of
all the client accounts and of all the things in the accounts. The worst
mistake that can be made is to lose the list. And it's a parody of the more
dramatic full-service brokerage commercials. Also a parody of people in
significant positions who follow or brag about following simple sets of
rules...

Of course that leaves out of the real stuff like laying off interest rate
sensitivity in rising rate environments and supporting common stock during
convertible floats...


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  #19  
Old 05-28-2005, 01:08 AM
James Hess
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Default why does physics math apply so well in finance and biology?



double d wrote:

My problem with any theory predicting wallstreet is that if
it garners a reputation for being successful, the theory
becomes part of wall street.

The only way to really measure its predictive power would be to
actually make predictions and keep the theory and all its
predictions secret from all traders on wall street for many years.

Then the results could suggest that maybe it was a good predictor
for the time over the past N years during which it was used.

Once you make it known, however, you cannot separate the thing being
predicted from the thing predicted it, and Wall street irrevocably
changes with respect to the theory, such that you can't verify whether
it would have been otherwise good at later dates.

The very fact that even one person trading on Wall street now knows
of this theory for predicting it may have an influence.

So long as it seems to be successful, people will spread the
news about their success stories.
Its predictions may become a self-fulfilling prophesy....
so long as it is believed, and until it is replaced by other
theories.

If your theory suggests the demand for Xyz will go up soon,
people should buy Xyz.

Then... when many believe your theory, what will they do
for such time as they are convinced your theory is good?

They will buy Xyz, therefore its demand will go up.

So there are in some cases explanations other than that the theory
was good for wallstreet for accurate results.

-Mysid

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  #20  
Old 05-28-2005, 02:27 AM
jonah thomas
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Default why does physics math apply so well in finance and biology?

double d wrote:


There's very good money to be made that way. But for how long? Wall
street follows fads, and at some point they're likely to decide that the
data isn't good enough to justify the models. At that point it's hard
to go back to physics.

This looks like a very good career move for physicists who are
mathematically competent but who haven't mastered the gamesmanship
needed to succeed as professional physicists.
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