Number, Unity, and the Infinite Multiplicity

Mark and Seth continue our conversation from ep. 198 by going through the arguments in the second half of the dialogue.

This puzzling section is largely a monologue by the character Parmenides, with the stated aim of showing the implications from first, the assumption that the One exists, and then that the One does not exist. But is this really Parmenides's One or the Platonic Form of Oneness? Can these be the same thing?