Monday, July 11, 2011

2011: A TIME ODYSSEY 2011時空漫遊



I love films with a theme of time travel so I watched “Donnie Darko” recently and am interested in investigating the terms and theories about time travel, such as tangent universe, mentioned in the movie. And that’s why I flipped Stephen Hawking’s “A Brief History of Time” for more details. He said, “Time travel is possible if we can construct a spaceship travelling through wormhole – the gap between space and time – at the speed of light”. Sounds easy? But we all know it is still impossible at this technology level. On the other hand, I really wonder, even if human beings were able to invent a time machine, what’s the function of it? Back to the past and change the history? Do you think history can be rewritten? Do you believe that destiny can be changed? I don’t think so.

因為喜歡穿梭時空一類題材的電影,所以欣賞了一齣名為《Donnie Darko》的電影;因為欣賞了這齣電影,所以為電影裡所曾提及的理論、名詞,比如是平行宇宙,感到趣味盎然;因為對時間理論感興趣,所以重新翻開了霍金的《時間簡史》。還記得兩、三年前問過在大學裡唸物理學的友人,究竟有沒可能回到過去,他的答案正是應用霍金的理論:只要能製造出速度接近光速的宇宙飛船,再穿越蟲洞,也就是空間與時間的隙縫,即可穿梭過去未來。乍聽來似乎很簡單,但以人類的科技水平來衡量,製造時光機仍然是遙不可及。我所關心的是,即使我們能發明時光機,又有何作用?回到過去,改變歷史?歷史真箇能夠被改寫麼?命運真箇能夠被扭轉麼?

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