This is an involved, fairly technical, but deeply rewarding and potentially groundbreaking essay. It posits that the geometry of real (i.e., noumenal) spacetime may be exactly what our mathematical models tell us it is: a complex projective space in which there is no separation between objects and subject. If so, then the implication is that the foundation of the universe is a form of universal consciousness, that the ordinary spacetime we experience is but a perspectival model, and that the very structure of the universe is defined by mental archetypes, or universal ‘ideas.’ Right or wrong, this is one of the most daring but also most explicit and well-articulated ideas underpinning idealism with physical theory, and it surely deserves multiple careful reads.