So the body theorist can avoid the problem of fission, avoid the problem of duplication by adding the no branching rule.

肉体主义者能避开分裂问题，通过无分支原则，避免复制导致的问题。

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But in the science fiction story where there's a duplicate,it says, if there's branching,the no branching rule comes in.

但在科幻作品里，复制的案例是存在的，分裂出现时，在无分支的规定下。

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So although the personality with no branching rule avoids the problem of what to say about duplicates, by saying when there's branching,neither of them is Shelly Kagan, the branching rule itself seems very counter-intuitive.

所以纵然带有无分支规定的人格理论,避开了关于复制的问题，说当出现分支时，Shelly，Kagan就不复存在了，这个无分支规定本身就很反直觉。

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