Preservation of information ?

  • Thread starter haiha
  • Start date
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Main Question or Discussion Point

When working with data, one should see that information can not be created except for random ones. Should there be a law of information preservation?
 

Answers and Replies

156
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hmmm, like entropy? Im still a noob at physics, but that sounds kind of like entropy.
 
688
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Well, it sounds nice. But I think we shoud define clearly the term information?
 
Claude Bile
Science Advisor
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There is no such thing as 'random' information, a random arrangement of particles for example, contains NO information.

Information can be created, but always at the expense of energy.

Information does have a precise definition, and it is linked with the definition of entropy.

http://en.wikipedia.org/wiki/Entropy

Check out section 3.3 for a reference to information theory.

Claude.
 

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