A Conceptual Reinterpretation of Cosmological Redshift: Wavelength Stretching due to Light Diffusion and Temperature Decrease

This work presents a conceptual model offering an alternative interpretation of cosmological redshift.Traditionally attributed to the expansion of space, redshift is here understood in terms of light diffusion and energy changes.The model proposes that light diffusion leads to cosmic expansion, which in turn lowers the universe's temperature.As the temperature decreases, the energy of light diminishes, stretching its wavelength and producing the observed redshift.While reminiscent of the "tired light" hypothesis, this approach focuses on intrinsic properties of light rather than attenuation through matter or scattering.This conceptual framework provides a new perspective for interpreting redshift and encourages reconsideration of fundamental assumptions in cosmological observation.