clipka <ano### [at] anonymousorg> wrote:
> Am 18.02.2016 um 17:21 schrieb Anthony D. Baye:
> > Stephen <mca### [at] aolcom> wrote:
> >> On 2/18/2016 12:18 AM, Anthony D. Baye wrote:
> >>> [...]
> >>> It would be immune to gamma rays and Electromagnetic interference, and if you
> >>> used volumetric data storage, you would probably never run out of space.
> >>>
> >>
> >> That is true. "640K ought to be enough for anybody." ;-)
> >>
> >
> > I get the reference, and understand the concept.  However, considering that the
> > theoretical limit for volumetric data storage is something like one bit per
> > cubic wavelength; given a laser with a wavelength of .15nm -assuming my math is
> > correct- you could fit 2.962963e29 bits into a cubic meter.
> >
> > That's something like 3*10^16, or three Quintillion ( a little more, really ),
> > terabytes. Per cubic meter of storage.
> >
> > Three Thousand Billion Terrabytes, plus a few million.
>
> Careful: As storage space (in the literal sense) increases, area becomes
> more and more of a limiting factor rather than volume, for two reasons:
>
> (1) Obviously, nothing can get in or out of a volume of storage space
> without passing through the surface.
>
> (2) I concede I might be wrong here, but I'm deeply convinced that at a
> fundamental level information transfer through a region of space is
> impossible without /temporary storage/ of the information in said space;
> in other words, information transfer puts a "load" on the storage medium
> that reduces the effective capacity. And while the "load" for even a
> single bit of information can be distributed across multiple pathways
> (thanks to wave/particle duality), this distribution is across an area,
> not a volume (this should be easy to see if you picture the information
> transfer as a wavefront traveling through the medium).
> This sharing of capacity between storage and transfer is demonstrably
> true for conventional electronic memory, which needs data transfer
> pathways between memory which reduce the space available for storage
> cells, but as I said, I'm convinced it is true for /any/ type of data
> storage.
>
> Note that this matches the holographic principle postulated by modern
> physics, which states that the maximum information capacity of any
> spacetime region is fundamentally limited by its surface area rather
> than its volume.

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.25.5321&rep=rep1&type=pdf

I'm not going to pretend that I understand all of it.  I had reason to look it
up once.

Regards,
A.D.B.

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