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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 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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So as I say,the soul theory can at least give us an answer that avoids the no branching rule.
所以我说，灵魂理论至少能给我们,一个避开无分支规则的答案。
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If they're going to survive thinking about this case at all, we need to throw in a no branching rule.
如果要让这个案例说得通，我们必须加入无分支规则。
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Well,maybe what the soul theorist would have to do at this point is accept the--da-ta-da--the no branching rule.
在这一点上也许灵魂理论者必须,也接受无分支规则。
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So we revise the personality theory to say, the secret to personal identity is having the same personality-- provided that there's no branching.
所以我们对人格理论稍作修改，提出人格理论的秘诀在于-,给人格提供无分支的前提。
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Whether or not you find the no branching rule hard to believe, if both views are stuck with it,well,then we're stuck with it.
无论你是否觉得无分支规则很难接受，这两种观点都卡在这里了，我们也就卡在这了。
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So let's try to choose between the personality theory with the no branching rule and the body theory with the no branching rule.
让我们从带有无分支规则的人格理论,和带有无分支规则的肉体理论选一个。
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As far as I can see,the best option for the body theorist at this point is to add--no surprises here--a no branching rule.
据我所知，肉体理论者最好的选择就是,毫无意外地，是加上一条无分支规则。
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Both of them,as we saw in the face of fission, needs to accept a no branching rule.
这两种理论在裂变说法的面前，都需要接受无分支规则。
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And the only solution that I can see, at least the best solution that I can see, is to accept the no branching rule.
且我看唯一的解决方法，至少是最合适的解决方法，就是接受无分支理论。
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Well,if you don't find the no branching rule plausible, you're in trouble as a body theorist.
如果你觉得无分支规则不可行，那作为肉体理论者，你就麻烦了。
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If you don't like the no branching rule, it's not clear what your alternatives are.
如果你不接受无分支理论，你的选择就不明确。
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Given the no branching view,the no branching rule, we can say,in the ordinary case,look, there really wasn't anybody imprinted with my memories and desires in Michigan.
在这个无分支这个规则下，通常的案例下，我们能说，密歇根并没有人植入了我的记忆和欲望。
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But according to the no branching rule, we can't yet conclude that I'm the same person as the person that was lecturing to you on Tuesday.
但根据无分支规则，我们还不能总结说，我跟星期二,给你们上课的人为同一人。
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So we don't need to add,in this ad hoc fashion,the no branching rule.
这样我们也就不用加入无分支规则了。
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The problem with--what drove the personality theory into the no branching rule, implausible as it may be,was the fact that your personality is like software,and it can be copied.
看似不可能，但将人格理论，拖入无分支规则的问题就是,人格可被拷贝这个事实。
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The trouble was,it seems the no branching rule seems very counter-intuitive.
麻烦在于，这无分支规定是很反直觉的。
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The no branching rule seems rather bizarre in its own right.
无分支规则似乎本身就很怪诞。
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So where the original personality theory said,same personality, that's good enough for being the same person, the new version throws in a no-competitors clause, throws in a no branching clause.
所以原人格理论说，相同人格，足以使之成为相同的人，新版人格理论添加了一个无竞争者条件，添加了一个无分支条件。
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But at other times in my philosophical career, I have found the body theory,that is to say, the body theory with the no branching rule,to be the more plausible theory.
在我哲学事业的另一段时间里，我也曾觉得，带有无分支规则的，肉体理论更为可行。
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But of course,the no branching rule didn't seem very intuitive.
但当然，无分支规则显得并不合理。
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So,if you're not willing to accept the no branching rule, if it strikes you as a bizarre thing to throw in to personal identity, maybe you need to reject the personality theory.
所以若你不愿意接受无分支规定，如果你觉得这个人认同感里很奇怪，也许你就需要否决人格理论了。
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There was certainly a long period of time in which I found the personality theory, that is,the personality theory with a no branching rule, to be the better and more plausible theory.
有一段时间内，我觉得无分支理论下的，人格理论，是更好更合理的理论。
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Can we possibly accept the no branching rule?
我们可能接受无分支规则吗？
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If the personality theory needs the no branching rule, and the body theory needs the no branching rule, and the soul theory needs the no branching rule, maybe we're just stuck with the no branching rule, whether or not we like it.
如果人格理论需要无分支规则，肉体理论也需要无分支规则，灵魂理论同样需要无分支规则，无论喜欢与否，也许我们就是卡在无分支规则上了。
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If the body view adds the no branching principle, then we can say,look,in the case of this sort of splitting-- This example is known in the to philosophical literature as fission, like nuclear fission when a big atom splits into two.
如果肉体理论加入无分支原则，我们就能说，在这种分裂的情况下-,这种分裂在哲学文献中叫做裂变，就像原子一分为二的核裂变。
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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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