AdS/CFT Duality, GKP-Witten Relation, and U(1)-Symmetric Holography

All high mathematics serves to do is to beget higher mathematics. ~ Ashim Shanker!

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost. Rigour should be a signal to the historian that the maps have been made, and the real explorers have gone elsewhere. W. S. Anglin, in Mathematics and History

AdS/CFT Duality, String Ontology, and the 'Illusion' of Gravity

You will find truth more quickly through delight than gravity. Let out a little more string on your kite. ~ Alan Cohen!

General Relativity and quantum field theory are by far the most successful scientific theories. They are however, if not impossible, extremely hard to reconcile and the main obstacle has to do with renormalizability. In a nutshell, unlike all other particles, whether in a first or second-quantizational context, the graviton does not respond to charge directly: it is massless, because the gravitational force theoretically has unlimited range and must be a