Just light from distant galaxies? Light is moving at C, so it cannot age because it experiences no time, but it's not always the case. Light must age, otherwis

Just light from distant galaxies? Light is moving at C, so it cannot age because it experiences no time, but it's not always the case. Light must age, otherwise our infinite Universe, which exists for infinity, will produce infinite^2 amount of light, which is not possible. Current explanation of light aging is stretching of space in all directions. However, same effect can be explained by local random stretching of space when, for example, virtual pair of quantum particles emerges and then disappears. Casimir effect is pretty strong, which indicates that our space is very bumpy, full of white noise. (Beware: non-native speaker).