On Jan 4, 2014, at 9:56 PM, LizR <[email protected]> wrote:
On 5 January 2014 16:29, Jason Resch <[email protected]> wrote:
On Jan 4, 2014, at 9:16 PM, meekerdb <[email protected]> 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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