If something is universally true then it shouldn’t have to do with whether you or I can travel at the speed of light. But beside that, you’re incorrect. Energy

If something is universally true then it shouldn’t have to do with whether you or I can travel at the speed of light. But beside that, you’re incorrect. Energy is not conserved in this universe. See e.g. https://www.preposterousuniverse.com/blog/2010/02/22/energy-is-not-conserved/ https://www.preposterousuniverse.com/blog/2010/02/22/energy-... for an explanation.