[apoorvkumar]

About your analogy - quantum cloning may not be allowed by laws of nature. That would make any consciousness unique at any point in time.

Also I feel the experiment suggests split brains would most likely become 2 very different (new?) entities with different behavior after losing integrity.

[mojuba]

> quantum cloning may not be allowed by laws of nature

It might be that the original should be destroyed, I understand. So be it, destroy the original and create N clones. But the thought experiment is an interesting one regardless.

[ivalm]

No, nothing about destroying. It's just you cannot know something sufficiently at infinite precision due to uncertainty principle. It just depends if maximally allowed knowledge of all of person's chemical states is sufficient to reproduce consciousness "sufficiently" closely (I bet it is).