日本語訳お願いします。
In 1990, world-famous physicist Stephen Hawking read papers of his colleagues proposing their version of a time machine, but he was immediately, skeptical. His intuition told him that time travel was not possible because there are no tourists from the future. Hawking also raised a challenge to the world of physics. There ought to be a law, he proclaimed, making time travel impossible.
The embarrassing thing, however, was that no matter how hard physicists tried, they could not find a law to prevent time travel. Apparently, time travel seems to be consistent with the known laws of physics. Unable to find any physical law that makes time travel impossible, Hawking has recently changed his mind. He made headlines in the British papers when he said, “Time travel may be possible, but it is not practical.”
お礼
ありがとうございました。