全息时空被用于某种研究量子化引力的方法，这种方法与超弦理论联系紧密。
"Holographic space-time is used in certain approaches to quantising gravity that have a strong connection to string theory, " says Cramer.
而那个花了三十多年努力的“弦理论”，虽然把引力拉扯进来了，代价是让宇宙加几个不知哪冒出来的维度。
Three decades of effort have been expended on string theory, which includes gravity but at the expense of having the universe inelegantly sprout hidden dimensions.
目前研究量子引力最常用的方法是超弦理论，研究人员希望它能描述宇宙在最基本层面上的活动。
Today the most popular approach to quantum gravity is string theory, which researchers hope could describe happenings in the universe at the most fundamental level.
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