Uploading may only become feasible when society has already transitioned to a machine society, there may then be only a limited interest in uploading the brain contents of deceased persons who by that time will be regarded to be not so intelligent. Or they may only do that to extract what they find interesting, instead of running the full person. Or perhaps they'll run large groups of people in a virtual setting to study the natural social behavior, so you may well find yourself in some Ice Age society hunting mammoths.

Saibal

On 13-03-2018 22:16, John Clark wrote:
​

Woody Allen said "_I don't want to achieve immortality through my
work; I want to achieve immortality through not dying. I don't want to
live on in the hearts of my countrymen; I want to live on in my
apartment_”, well maybe there is a way. Yesterday the Large Mammal
Brain Preservation Prize was awarded to 21st Century Medicine and lead
company ​researcher Robert McIntyre. They used both glutaraldehyde
fixation and cryogenic storage, and proved that a pig's brain
connectome, that is ​the 150 trillion synaptic connections that are
thought to encode memory and the whole mind, is preserved. And because
it is stored at near liquid nitrogen temperatures it could be
preserved for centuries. 3D pictures were made by a electron
microscope after the brain was rewarmed and they showed amazing
preservation, and there is no reason to think molecular-level
information wouldn't be preserved too. It's even more impressive when
you consider that the pictures were made after rewarming because most
of the damage happens at that stage, I would have been delighted even
if the pictures were made while the brain was still frozen, but this
is even better. Kenneth Hayworth  a PhD in Neurosciencesaid:

"Let that sink in…  Aldehyde-stabilized cryopreservation, if
properly applied TODAY, could preserve the information content of a
human brain for indefinitely-long storage."

At this point there is little doubt, Aldehyde-stabilized
cryopreservation works and it does a much better job than the method
Alcor currently uses. And at this point no new science is required we
just need improved technical procedures to make it practical to use in
a hospital setting and the will to do so.

There is more about this here

https://turingchurch.net/cryonics-for-uploaders-the-brain-preservation-prize-has-been-won-cebbe98c241a
[1]

And there is a REALLY good video about this, it's 24 minutes long but
anyone who is seriously interested in immortality needs to watch it:

​

 https://www.youtube.com/watch?v=ejIKy5R4uGM [2]

John K Clark

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Links:
------
[1]
https://turingchurch.net/cryonics-for-uploaders-the-brain-preservation-prize-has-been-won-cebbe98c241a
[2] https://www.youtube.com/watch?v=ejIKy5R4uGM
[3] https://groups.google.com/group/everything-list
[4] https://groups.google.com/d/optout

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