英国著名的物理学家斯蒂芬·霍金继不久前承认外星人存在后,又发表了一个惊人的论述:他声称载着人类飞入未来的时光机,在理论上是可行的,所需条件包括太空中的“虫洞”或速度接近光速的宇宙飞船。不过,霍金也警告说,不要搭时光机回去看历史,因为“只有疯狂的科学家,才会想要回到过去‘颠倒因果’”。 Stephen Hawking, a famous British physicist, recently made another astonishing remark after admitting the existence of aliens not long ago. He claims that it is theoretically feasible to carry the time machine of human beings into the future. The requirements include In space “wormholes” or speed of spacecraft close to the speed of light. However, Hawking also warned: Do not take the time machine back to see history, because “only crazy scientists will want to go back to the past,” turn over causality. "