RE: life extension advocacy plans (fear of Tithonus) --> worryingabout the brain

From: Eugene Leitl (
Date: Fri Jul 06 2001 - 08:05:34 MDT

On Fri, 6 Jul 2001, Miriam English wrote:

> Why would you need to destroy the original?

Because otherwise we can't get the resolution.

> There are scanning techniques that can resolve down to individual neurons
> in insects non-destructively now. They require pretty intense magnetic
> fields and only work on small things so far, but I imagine scaling it up is
> not an insoluble problem. We would also need to scan at a fair bit below

Imagination is unfortunately wrong here. MRI microscopy doesn't scale to
the resolution necessary, which may well be submolecular.

> the level of detail of neurons so that you make out receptor sites and
> synaptic vesicles. That may be enough to automate recording of a human

Alas, I don't see MRI microscopy resolve any submicron structures, even on
microscopic (mm^2) samples.

> brain so that a model of its operation could be accurately be recreated.
> This way you could have a copy of yourself made so as insurance against a
> calamity. You would periodically "backup" your brain to record all the more
> recent memories and thought patterns, and choose at which model contains
> the happiest and healthiest version of yourself to be used as your final
> self upon biological death.
> The model would operate inside a computer (likely not the kind of computer
> we have at the moment), and would play inside virtual worlds. There would
> be windows out onto the "real" world too.
> I like very much the idea that I could keep a backup version of myself
> without endangering my biological self in the process. I hope it is not too
> far away. I figure maybe 20 years from now...

I recommend consulting the archives (if they be working), this is a
recurring thread.

-- Eugen* Leitl <a href="">leitl</a>
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This archive was generated by hypermail 2b30 : Fri Oct 12 2001 - 14:39:42 MDT