This whole discussion starts with a sort of ad hominem attack on Harris, suggesting his view is “naive” and (later) silly. That’s amusing since all Harris was doing was paraphrasing the basic core of the Biblical account of the ascension and second coming. There’s a literal up motion and a down motion: Up toward the sky for the ascension, down toward earth for the second coming. All this “vast” and “rich” and “nuanced” theory that Davis presents is simply modern apologists’ attempts at recasting these events in a way that doesn’t so clearly contradict science. The fact is simple: for most of Christian history, a literal upward motion to heaven above us and vice versa was the only understanding. If you’re criticizing Harris’s view, you are in fact criticizing the Biblical account. All the theories Davis presents are simply speculative apology that has absolutely no support in the Biblical text.