As an example, general relativity is unable to explain what will happen if a subatomic particle hits the singularity of a black hole which is a phenomenon predicted by general relativity and involves gravity in the macro world.

• 如例，广义相对论就不能结解释如果一个次原子粒子偶然碰上黑洞的奇异所要发生的，广义相对论预言了这个现象而牵涉宏观世界引力。