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**fkisjjdhh** · 06-23-2009, 05:28 PM

Dear Srimathi HH Ji,

Physical laws apply to closed systems. This is because one can not hypothesize about the effects of open systems. And as Heisenberg's principle notes. there is even an error with an observer being part of a closed system.

A closed system essentially does not allow any influence from outside which is unknown. An open system is then one which has to take in to account what may emanate from outside, which is essentially unknowable. This is very similar to the foundation of Economics, which takes refuge in the statement 'Ceteris Paribus' (while everything else remains constant).

This is the problem with Science. We are trying to describe systems, while we are part of them.

Regards,
KRS

06-23-2009, 05:28 PM	#13
fkisjjdhh Join Date Oct 2005 Posts 460 Senior Member	Dear Srimathi HH Ji, Physical laws apply to closed systems. This is because one can not hypothesize about the effects of open systems. And as Heisenberg's principle notes. there is even an error with an observer being part of a closed system. A closed system essentially does not allow any influence from outside which is unknown. An open system is then one which has to take in to account what may emanate from outside, which is essentially unknowable. This is very similar to the foundation of Economics, which takes refuge in the statement 'Ceteris Paribus' (while everything else remains constant). This is the problem with Science. We are trying to describe systems, while we are part of them. Regards, KRS
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