If God is infallible in all his beliefs, then it is not possible that God believes T and T is either false or becomes false. If so, and if God believes T, we get an argument for theological fatalism that parallels the basic argument.

It is not clear, however, that the denial of future contingent truth is sufficient to avoid the problem of theological fatalism. Hunt (2020) suggests that future contingents that fail to be true for presentist reasons alone might nevertheless qualify as “quasi-true” (Sider 1999, Markosian 2004), and argues that the quasi-truth of God’s beliefs about the future is enough to generate the problem. The following consideration tends in the same direction. According to the definition of infallibility used in the basic argument, if God is infallible in all his beliefs, then it is not possible that Go...