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Monday, March 6, 2006 12:00 AM

Secrets of the cosmos

Could the universe be a giant computer? A new book argues just that, and unlocks some great scientific mysteries along the way.

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  • Monday, March 6, 2006 06:29 AM

    Cosmos not so simple

    Several quick things: information is not like energy or mass any more than meaning is ink. Change the scale on your thermometer -- now, where's the difference in E? Also, his definition of entropy is simply wrong. Entropy is measure of available E for work. Before you can understand S=k*lnW you need to understand equipartition, etc. But even Dirac Prize winners make mistakes about entropy. The whole subject is very technical and easy to misunderstand,and you have to be very careful when applying probabilty & canonical ensembles to anything larger than molecules. Finally, the universe is not dying a heat death.

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