On Tuesday, February 19, 2013 10:48:03 PM UTC-5, stathisp wrote:
>
>
>
> On Wed, Feb 20, 2013 at 12:39 AM, Craig Weinberg <whatsons...@gmail.com> 
> wrote:
>
> > As far as the stock market being computable, how would you go about
> > determining, for instance, whether or not I rebalance my 401k and on what
> > day and time?
>
> You can't, because it's a chaotic system. If you eschew computers and 
> "simulate" the stock market by building an entire world with humans and an 
> economy you would get a stock market that functions similarly to the 
> original but not the same as the original, so it would be almost useless 
> for predicting a particular stock movement. A computer simulation can't be 
> expected to be better than a simulation with real humans living in a real 
> world. In other words, you would be simulating *a* stock market, not *the* 
> stock market.


How can you explain that we can predict our own decisions? Or better yet, 
how do we make decisions in the first place?
 

>
> > The brain has the same issue - you can't tell what it is going to do from
> > the outside, because the behavior on the outside is often driven by  the
> > story going on the inside - which cannot be known unless you too are on 
> the
> > inside.
>
> But that's the case for everything. Its behaviour is driven by what is 
> going on on the inside as well as what's going on on the outside.
>

Some things are more predictable to us from the behavior  we can observe 
though.



>
> --
> Stathis Papaioannou
>
>
> -- 
> Stathis Papaioannou
>

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