If chapters 1 and 2 are written by different authors, then yes, there would be an alternative. But this has already been discussed earlier in the thread. Just saying that it's a matter of how you approach the text - if you think it's infallible, and you take the traditional avenue of believing in Moses authoring the whole book of Genesis, then yes, I can see how you come to your conclusion. However, people who approach the Bible from a historical, archeological, and even critical perspective, the text isn't quite so clear. We all bring biases to the text - whether we believe it's infallible, or inspired with errors, or just a book of fairy tales, that influences how we read the text. There is no "text speaking for itself." Our belief about the very nature of the text colors how we read it.