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BasilofBasiley a day ago

Just wrote about this further down. I would be satisfied with identity retention with ALL neurons replaced, if certain conditions were met.

I'll just copy/paste the relevant part so no one needs to follow the other comment* if they don't want to:

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And finally, I would settle for a not so perfect copy of a brain scenario. Magic "Nanobots" replacing the neurons of a subject in vivo, gradually over the span of a few days/weeks/months. The new neurons can be non-biological, but must work identically to the original ones and obviously the connectome should be identical. The subject would be asked if they feel ok with this process regularly and the general part of the brain that is responsible for answering that question would be the last part to be replaced, otherwise it would be cheating wouldn't it? On completion, I would assume it's the same person and if it was me I would assume I'm the same person. This preserves continuity (of the self) to my personal satisfaction. Anything less than that is cryonics-level of bull*.

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Edit:

> clone instantiated in a computer.

Oh and as far as clones go, I would assume it is the same identity. There would be no original or copy after this, all copies and original are the same as a string of bytes in memory. But... Only at inception. Then as more life experiences each one accumulates, the more they diverge and cannot be treated as the same person. And as such, I wouldn't let a clone like this, nowhere near my imaginary partner for life.

* - https://news.ycombinator.com/item?id=47467300#47471320