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I want to talk a little bit about the most exciting and most recent development in this hypothesis. And so this is addressing the very fundamental dilemma which occurs in coupling quantum fields to gravity. Okay, so we know that in order to describe the laws of fundamental physics, we have to use quantum fields. This is an extremely successful technique, and itamp;#39;s the basis for the Standard Model. Everything is described by quantum fields in the Standard Model. However, these quantum fields look like the right-hand picture in the vacuum. And this is just a consequence of the Heisenberg Uncertainty Principle. You might want to set a field to zero, and just say thereamp;#39;s no electric or magnetic field in space. But this is inconsistent with quantum mechanics. Why? Because the magnetic field is like a coordinate of a particle, x, and the electric field is like the velocity of a particle, or its momentum. And the Heisenberg Uncertainty Principle says that