One of the cool things about the “God is an imaginary character” hypothesis is that it does such a good job of predicting the actual behavior of the gods. In any situation, you can predict exactly what a god can and cannot do merely by knowing what an imaginary supernatural character can and cannot do. That means that god (or any other magical, imaginary being) can do anything you can imagine—but only in a story. And he/she/it/they cannot do anything more than that.