这很重要——我认为这是一个关键的论点——当我们说一个人就是一个身体时，我们不把它理解为——物理主义者并不意味着——人是任何老的身体。

It's important — I think this is the crucial point — that when we say a person is just a body, we don't understand that to mean — the physicalist doesn't mean that as — a person is just any old body.

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最近，物理学家试图把引力和量子理论融为一体，由此来解释空间和时间的性质，已经开始重新研究这个老问题。

Recently, physicists trying to meld gravity and quantum theory, and so explain the nature of space and time, have begun to revisit this old question.

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在此之前，虽然物理学家知道光是一种量子现象，但还是能用老的基于光波的描述搪塞过去。

Before then, although physicists knew that light was a quantum phenomenon, they had been able to get away with using the old wave-based descriptions.

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