英国著名物理学家斯蒂芬·霍金曾在英国《每日邮报》上发表文章称,时光之旅在理论上是可行的,人类可以打开回到过去的大门和通向未来的捷径。霍金在文章中提出了三种理论上可行的时空旅行方式。为了实现时光旅行,霍金首先建议人们接纳时间作为第四维的观念。他举了一个非常简单的例子:当人们驾驶汽车时,向前直行和向后倒车是第一维,向左 The famous British physicist Stephen Hawking published an article in the British “Daily Mail” saying that the journey of time is theoretically feasible and that mankind can open the door to the past and the shortcut to the future. Hawking put forward three theoretically feasible ways to travel in time and space in the article. In order to make time travel, Hawking first suggested that people should accept time as the fourth dimension. He gave a very simple example: when people driving a car, forward and backward reversing is the first dimension, left