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Harder Drive: hard drives we didn't want, or need (2022) [video]

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Re: Harder Drive: hard drives we didn't want, or need (2022) [video]

#21

Earlier quoted context omitted.

There's a great sci-fi short story (well, two, I guess) that I can recommend based on this - although, knowing what you said is a slight spoiler for them.

Please do!!

One of them is https://qntm.org/transi. I don't know about the other.

Re: Harder Drive: hard drives we didn't want, or need (2022) [video]

#24
I remember lcamtuf mentioning very similar concept ca. 2003.

In his version you would partition secret data and send it out to non existing email addresses, just to get them bounced back within a couple of days.

If you want to get your secrets back together you would simply start gathering appropriate parts (you need to keep track of all the chunks somewhere), otherwise you'd simply send them to another non existing email address.

Re: Harder Drive: hard drives we didn't want, or need (2022) [video]

#28

The idea of buffering data by transmitting it somewhere far, bouncing it off a moon or whatnot, and using that distance of radio waves as your memory is my favourite thing ever.

Unfortunately due to free-space path loss limiting the Shannon-Hartley channel capacity, the total amount of information storable using this method asymptotically approaches zero for large distances.

For reference, the combined formulas are C=d×B×log_2(1+(Dc÷4πdf)²×S÷N)÷c. And lim->∞ d×ln(1+1÷d²) unfortunately = 0. (Curiously, attempting to store more information by increasing bandwidth -- and thus center frequency -- suffers the same limitation.)

(Wolfram Alpha isn't forthcoming yet with a closed-form solution for the optimal distance...)

Re: Harder Drive: hard drives we didn't want, or need (2022) [video]

#30
post #25

http://tom7.org/papers/murphy2022harder.pdf

Fair, but Tom7's video presentations are always really fun too.

That said, if Tom7 wasn’t meticulous about typesetting all his results, we would never have been blessed with https://youtu.be/Y65FRxE7uMc
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