The worst prediction in physics

It seems that predicting the energy density of empty space should be a simple thing, yet it turns out that the two best theories of modern physics (the standard model and the general theory of relativity) make staggeringly different predictions. In this video, Fermilab’s Dr. Don admits to this dirty little secret of physics. Dark energy video: Quantum foam video: Video talking about why the Planck length is the shortest length consistent with the standard model: Possible answers: Fermilab physics 101: Fermilab home page: