他们需要将量子力学和相对论这两大物理学理论统一起来——前者是人类对微观粒子运行的描述，而后者则适用于解释宏观的空间、时间和物质相互作用的机制。
They have to stitch quantum theory - our description of how very small things behave - together with relativity - the theory behind the way space, time and matter interact.
这种说法反过来对空穴的本质提出了疑问：在剥离掉一切物质，引力和场之后，空间和时间还会存在吗？
That, in turn, raises questions about what the void might be. Stripped of all matter, forces and fields, would space and time exist?
给出引力的作用规律和关于物质分布的假设后，下一步是得出宇宙的动力学规律——空间和质量如何与时间相互作用。
Given a law of gravity and an assumption about how the matter is distributed, the next step is to work out the dynamics of the universe - how space and the matter in it evolves with time.
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