"it is not that the myth of Thoth concerning the supreme god and the treacherous scribe anticipates the positive truth of grammatology, but rather that grammatology just repeats (identically) the myth of Thoth."

     John Milbank, Theology and social theory:  beyond secular reason, 2nd ed. (Malden, MA:  Blackwell Publishing, 2006), 312, on Derrida (about whom I myself know next to nothing).  Milbank's point (throughout this chapter, and indeed the book) is that the latter ontological "conjecture" is every bit as plausible as the former.