I read both the transcript (which is linked above the video) and also watched the video. I find that the pictures are interesting but also distracting for absorbtion all of the ideas presented, so recommend reading the above linked transcript.
First of all, I feel like I do not understand Plato very well. And found this:
So further questions regarding Plato's ideal forms -- is there something in the human brain or the human pysche which "processes" information in such a way as to bring about abstractions and the longing for a "true world" ("true world" is Nietzsche's idea and which I think should really be called a "furture perfect world")?
What causes humans to distrust the "messiness" of sensations and opinions, and the impermanent nature of experience, and instead want to create a static, nailed-down understanding of permanent objects -- is this a kind of grasping for safety or a longing for the "garden of eden" before the complexities of civilization?
And perhaps, in our own search for the "Epicurean Garden" are we seeking some ideal, perfect peace and safety?