X-Message-Number: 32916
From: 
Date: Thu, 7 Oct 2010 21:32:46 -0400 (EDT)
Subject: Reason 3--why uploading unlikely

Reason 3. Time intervals in the computer and in  life.
 
We envision a situation where a person to be simulated is scanned and  the 
data are used to create a representation of the subject in the computer,  
encoded as some kind of symbols representing numbers, the numbers in turn  
representing coordinates of points in phase space for the simulation. The  
program then has the computer generate successive states of the  simulation, 
i.e. successive arrays of data. Each later state of the  computer corresponds 
to a later moment in the "life" of the simulation, the  interval between each 
successive state in the computer being constant  according to the 
capability of the computer.
 
Now, assume the original lives on, while his simulation is being run on the 
 computer. The simulation "lives" like a film with frames at non-zero 

intervals.  The original lives in some fashion not presently 
understood--possibly 
in a  continuous fashion with no gaps, or possibly 
jumping each time to an appreciably different state with nothing in  

between. Even in the latter case, however, it is exceedingly unlikely that the
intervals between successive states would be the same for the original and for 
 the simulation. Hence, it seems to me, the simulation cannot be faithful 
to the  original. Again, we can't know yet how important the differences may 
be, but  there will surely be differences.
 
Robert Ettinger


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