人到底有没有可能穿越时空呢？
你知道吗，你的“现在”和我的“现在”可能是两个完全不同的概念！
其实“穿越时空”的事情每天都在发生！
这到底是怎么回事呢？
爱因斯坦的相对论告诉你答案！
Is it even possible to travel through time?
your "Now" and my "now" might be two very different things!
In fact, the things that travel through time and space are happening every day! What the Hell is going on here?
Einstein's theory of relativity tells you the answer!