Laws of in fundamental physics might be causal. Humean causation has the problem that everything is contingent. It just so happens that energy always equals mas

Laws of in fundamental physics might be causal. Humean causation has the problem that everything is contingent. It just so happens that energy always equals mass times the speed of light squared. But there’s no reason for it. This seems to run counter to the goal of physics and cosmology, where some fundamental explanation is sought.