[ExI] Mind Uploading: is it still me?
Adrian Tymes
atymes at gmail.com
Sun Dec 28 00:02:49 UTC 2025
On Sat, Dec 27, 2025 at 6:07 PM Ben Zaiboc via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
> The x-y resolution mentioned was overkill, by at least 10 times, and the z resolution less so, but still probably higher than necessary. Let's say it was just about right, though. That means approx. 14 trillion bytes for 1 cubic mm.
>
> Times that by 1.4M for the whole brain (almost certainly not actually needed (for our purposes), for several reasons, and as discussed previously, a generic human brain model could probably cut down on that considerably, with individual variations laid on top of it), so we get 14 x 10^12 times 1.4 x 10^6 = 19.6x10^18 bytes (? please check this, I'm on dodgy ground here, given my mathematical challenges). Say around 20 exabytes.
>
> That's a lot, but I reckon it can be reduced a fair bit (a lot, actually)
Or don't bother. I once wrote a disk management system that could
handle up to yottabytes. There are predictions of petabyte hard
drives in the 2030s. It is quite conceivable for some future
single-device hardware, not much larger than (and perhaps
significantly smaller than) a typical adult human brain, to handle 20
exabytes. Emphasis on "future": it won't be tomorrow, but probably
this side of 2100. The preserved dead can wait that long, yes?
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