How Our Universe Violates a Fundamental Law of Physics! Energy Conservation

The video discusses the principle of energy conservation, stating that energy cannot be created nor destroyed, but only changes form, which holds true in isolated systems. It questions whether this principle applies to the universe as a whole, considering the universe as an isolated system because it encompasses everything. On the quantum level (microscale), energy conservation is explicitly defined and holds true, as represented by the Schrodinger equation and other quantum mechanics principles. However, on a larger scale, this is not the case. Using Einstein's theory of general relativity, the video argues that energy is not conserved at large scales in the universe due to the curvature and change of spacetime. Observations supporting this argument include the expanding universe and the redshift of light from distant galaxies, which seems to violate energy conservation. Dark Energy, accounting for almost 70% of the universe's energy, is increasing with the universe's expansion, contradicting the principle of energy conservation. The video concludes by suggesting that, due to general relativity pointing out that energy on its own is not conserved, we might need to let go of the idea of energy conservation at the universe's scale. It, however, emphasizes that energy conservation equations remain valid on human scales. It discusses the idea of negative gravitational energy as a potential counterbalance to increasing dark energy. It is noted that this is not a practical approach due to the lack of a constant gravitational density in the universe and the fact that spacetime curvature is determined locally by the presence of matter and energy. There's a mention of the unknown size of the universe and whether its potential infinity precludes it from being an isolated system. Finally, the video highlights the observable universe, pointing out the loss of energy when galaxies move beyond our observation scope due to the equivalence of energy and matter (E=mc²).