On Jan 4, 2014, at 9:56 PM, LizR <lizj...@gmail.com> wrote:

On 5 January 2014 16:29, Jason Resch <jasonre...@gmail.com> wrote:
On Jan 4, 2014, at 9:16 PM, meekerdb <meeke...@verizon.net> wrote:
You don't really have to say it's an illusion. It's a description of the world and the fact that you put different t-labels on events at the same (x y z) doesn't undo the fact that there are different events at those different t-values. Memory provides an arrow of psychological time - but it doesn't always follow the arrow of physics (entropy increase).

Doesn't the von neumann-landauer limit imply information can only be stored in the direction of time in which entropy increases?

Surely information being erased is the same as it being stored in reversed time?

To store information is to overwrite some information that was already there. Think about writing a bit to a hard drive. If you write a 1 to position X you can no longer say if position X was formerly a 0 or a 1. So setting a bit (storing information) is equivalent to irreversible erasure.

Erasing information requires an entropy increase, which only happens in one direction of time.

Jason

However, mainly I agree - I didn't get that either. Brent, what did you mean by this?

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