Conservation laws result from continuous symmetries in the laws of physics, as proven by Noether's theorem.
Time translation symmetry implies energy conservation, but time translation symmetry is only an empirical observation on a local scale and has not been shown to be true on a global universe scale.
alt Hacker News
Time translation symmetry implies energy conservation, but time translation symmetry is only an empirical observation on a local scale and has not been shown to be true on a global universe scale.