Even if we don't have any knowledge in this life, we have and tend to rely on relevant true beliefs and that's sufficient for inquiry.

So long as knowledge goes beyond mere true belief, foreknowledge is implausible, since having and relying on relevant true beliefs is sufficient for inquiry. A stepping-stone version of prior true belief seems reasonable, though perhaps we should accept only an even weaker view: a stepping-stone version of roughly-accurate beliefs.

If historians of philosophy are to be divided into those who focus on discontinuities and those who focus on continuities, I belong in the latter camp.