translation.en: Now, whenever you hear the word "dark" in physics, you should get very suspicious because it probably means we don't know what we're talking about.
translation.zh: 现在，当你在物理学上 听到“暗”这个词的时候， 你应该表示怀疑， 因为它可能表示 我们并不知道我们所谈论的东西。