黑洞防火墙的概念挑战了我们对量子力学和广义相对论的理解。
I don't give a damn if you're offended, I don't care.
Life lessons will be presented to you in the order they are needed. Everything you need to master the lesson is within you. Once you have truly learned a lesson, you will be presented with the next one. If you are alive, that means you still have lessons to learn.