 Another way in which there might be nothing to explain is connected to philosophical debates about truth. If a correspondence theory of truth is correct, and if thus for a sentence to be true it has to correspond to the world in a way that mirrors the structure and matches parts of the sentence properly with parts of the world, then the form of a true sentence would have to be mirrored in the world. But if, on the other extreme, a coherence theory of truth is correct then the truth of a sentence does not require a structural correspondence to the world, but merely a coherence with other sentences. For more on all aspects of truth see (Künne 2003).