In contradistinction to perplexity proper, it exhibits greater insistence on the determinacies of knowing.
Instead of an interpretation of the determinacies of science, I now consider a philosophical interpretation of reason itself.
The determinacies of univocal intelligibility and its definite grasp of things give way to the indeterminacies of darker origins and to equivocities of being, ever elusive to complete grasping.
More positively, we find a claim to release a more fulfilling determining power beyond these human determinacies.
When Heidegger calls for a new beginning beyond the so-called end of metaphysics, he may be right about the need for something other to calculative thinking, and so beyond the determinacies of curiosity, but this other thinking is not just back there before Plato and Socrates did their "bad" work, nor yet before us in the future, in the coming mission of being.