translation.en: So this is a problem, believe it or not, that reflective physicists really think a lot about, and at this point they tend to go metaphysical, say, well, maybe the set of laws that describes our universe, it's just one set of laws and it describes one part of reality, but maybe every consistent set of laws describes another part of reality, and in fact all possible physical worlds really exist, they're all out there.
translation.zh: 这个问题，信不信， 让很多物理学家冥思苦想， 现在他们倾向于形而上的思想， 那么，也许是这一套定律 解释了宇宙， 但它只是众多套定律之一， 它只解释了部分现实， 但也许每一套完整的定律 都可以解释另一部分现实。 事实上所有可能的现实世界 都存在，它们都在那。