Is the 'law of the conservation of energy' a universal law?

Thanks for the A2A. This question is pretty interesting. The answer would have been a perfect yes, a few decades ago. read more

In physics, the law of conservation of energy states that the total energy of an isolated system remains constant, it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed from one form to another. read more

Yes law of conservation of energy is always applicable at any certain point of universe making it a universal law. But it doesn't say anything for the whole universe that means Energy at any given point is conserved but same can't be said for Energy of Universe as a whole system. read more