At Tm. 47e, Timaeus steps back from his discussion of what came about through noûs and turns toward an account of what came about through anankê. Broadie, 2012, Nature and Divinity in Plato’s Timaeus, sketches out two routes for the interpretation of this ‘new beginning.’ The ‘metaphysical’ approach uses perceptibles qua imitations of intelligibles in order to glimpse the intelligibles (just as we look at our reflection in a mirror in order to view ourselves). The ‘cosmological’ reading assumes we use (...) the perceptible part of the cosmos in order to come to know the entire cosmos. Broadie openly favors the cosmological reading for understanding the Timeaus as a whole. However, she confines its utility to the Timaeus and does not recommend it for other dialogues. I use Broadie’s ‘cosmological reading’ to better understand what Plato distinguishes as anankê in his second beginning. This sets the stage for my argument that Broadie’s cosmological reading is a promising means for understanding the metaphysics and epistemology of the Forms. By making some comparisons to Sophist (251c–256a), I show that a refined understanding of anankê in the second beginning of the Timaeus clarifies what Plato thinks is involved in coming to know a Form. I argue that a close look at what was available to the Demiurge for cosmic creation by means of noûs yields three distinct ways in which his construction of the cosmos was limited by anankê. Clarifying these three ways in which anankê operates shows that the Demiurge’s manipulation of the foundational elements yields a perceptible world that brings out some potential relationships among Forms while suppressing others. In particular, the Demiurge’s geometricization of the elements leads him to make compromises concerning how Forms can combine in the Receptacle. These choices produce nomological relationships among the Forms with respect to where they can overlap in the Receptacle. This produces the law-like and reliable, but unnecessary, behavior of the perceptible world. I argue that our understanding of these limitations and their translation into where the Receptacle can partake in more than one Form simultaneously, figures importantly in the estimating the potential for human knowledge of the Forms. I question the use of ‘necessity’ as a translation for ‘anankê’ in the Timaeus. (shrink)