Dark energy, Newton's law & the LHC vacuum energy: The dog that didn't bark

This note briefly summarizes two things. First, it states why I believe progress understanding Dark Energy hinges crucially on finding a solution to the 'old' Cosmological Constant Problem, and more generally reviews why technical naturalness provides such an important clue to solving problems in cosmology. A set of criteria are formulated for judging success when discussing prospective solutions to the problem with their proponents, with a …