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两个悖论---饶一饶

所属:生活杂谈 作者:网络转载 阅读:15099 次 评论:0 条 [我要评论]  [+我要收藏]

一个人回到了过去,在他祖母能遇到祖父之前就杀了他的祖父。这就意味着这个人的父母之中有一个不会出生;依次这个人自己也不会出生;这就意味着他没有机会进行时光旅游挥刀过去;这就意味着他的祖父依然还活着;这就意味着这个人能构思回到过去,并杀了自己的祖父。
A man goes back in time, and kills his grandfather before the grandmother can meet his grandmother. This means that one of the man’s parents will not have been born, and the man in turn, will not have been born. This would mean that he could not have travelled back in time after all, which means the grandfather would still be alive, and the traveller would have been conceived allowing him to travel back in time and kill his grandfather.
回答:当时间旅行者改变了过去的某事的瞬间,那么平行宇宙就会被切开,这个可以由量子力学来解释。
ANSWER: The moment the time traveller changes something in the past, a parallel universe splits. This is supported by quantum mechanics.
一个鳄鱼偷了一个父亲的儿子,它保证如果这个父亲能猜出它要做什么,它就会将儿子还给父亲。那么如果这个父亲猜“鳄鱼不会将儿子还给他”,那会怎样?
A crocodile steals a son from his father, and promises to return the child if the father can correctly guess what the crocodile will do. What happens if the father guesses that the child will not be returned to him?
回答:这是一个无解得问题。如果鳄鱼不还儿子,那么父亲就猜对了,鳄鱼就违背了诺言。如果鳄鱼将儿子还给他,那么父亲就猜错了,鳄鱼又违背了诺言。
ANSWER: There is no solution. If the crocodile keeps the child, he violates his rule, as the father predicted corretctly. If the crocodile returns the child, he still violates his rule as the father’s prediction was wrong.
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2010-09-03 13:00 编辑:kuaileyingyu
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