摘要
影片《星际穿越》中的科学家们通过虫洞实现了穿越,《回到未来》中的布朗博士乘着一辆跑车改造的时光机随心所欲地回到过去和未来,《终结者》系列中约翰·康纳把自己的父亲送回过去孕育自己,这些穿越的场景在令人感到震撼的同时又令人十分迷茫——它们真的可行吗?实际上,从科学角度而言,穿越还是需要遵守一定规则的,胡来可不行哦。Time travel isn’t magic;it may or may not be allowed by the laws of physics-we don’t know them well enough to be sure—but we do know enough to say that if time travel were possible,certain rules would have to be obeyed.
