The discussion revolves around the concept of universal energy, particularly in the context of its conservation and the implications of dark energy as the universe expands. Participants explore theoretical frameworks, speculative ideas, and the nature of energy in relation to cosmological phenomena.
Participants do not reach a consensus on the nature of energy conservation in the universe, with multiple competing views and speculative ideas presented. The discussion remains unresolved regarding the implications of dark energy and the overall energy dynamics of the universe.
Limitations include the dependence on definitions of energy in General Relativity, the speculative nature of some theories discussed, and the lack of consensus on the implications of dark energy.
Drakkith said:I believe light loses energy over time due to redshift from expansion.
Nope. See my first post in this thread.ImaLooser said:I thought that total energy was conserved. Energy density of radiation decreases because the volume of the universe increases. Energy density times volume is a constant, as far as I know in a finite Universe. In an infinite Universe then energy density divided by matter density would be a constant.