Text generation is conversion of previously prepared idea to text. If you didn't have that idea beforehand, you would have nothing to say. Sure it's a nontrivia

Text generation is conversion of previously prepared idea to text. If you didn't have that idea beforehand, you would have nothing to say. Sure it's a nontrivial process, because ideas don't map to text well, but it's merely text conversion, not really thought. Also text must work around reader's ignorance and prejudice, which is completely irrelevant for idea itself.