On 2/2/2012 10:35 AM, Evgenii Rudnyi wrote:
Yes, but when we speak about information carrier (book, a hard drive, DVD, flash memory) it is exactly the same. And it has nothing to do with the total number of physical states in the device, as this example with zero temperature nicely shows.

That's not true. The arrangement of ink on the page, the embossed face of the coin, do contribute to the physical states. It's just that the information encoded by them are infinitesimal compared to the information required to define the microscopic states, e.g. the vibrational mode of every atom. So when we're concerned with heat energy that changes the vibrational modes we neglect the pattern of ink and the emobossing. And when we're reading we are only interested in the information conveyed by a well defined channel, and we ignored what information might be encoded in the mircroscopic states. But the two are both present.


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