[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).