Is the Universe 26.7 Billion Years Old with No Dark Matter or Dark Energy?

I will discuss a new model that resolves the 'impossible early galaxy' problem while complying with supernovae type 1a and baryonic acoustic oscillations data. The problem was noticed in some Hubble Space Telescope observations and confirmed by the James Webb Space Telescope's observation of cosmic dawn galaxies.  The model is a hybrid of two ideas from the first half of the last century: a) Zwicky's tired light and b) Dirac's varying coupling constants.  The existence of tired light (TL) reduces the redshift contribution from the expanding Universe, which increases the age of the Universe to 26.7 billion years. Covarying coupling constants (CCC) eliminate the need for the cosmological constant, hence the dark energy.  The critical density in the CCC+TL model is only adequate for observable (baryonic) matter with no room for dark matter or dark energy.  The accelerated expansion of the Universe is caused by the weakening of the coupling constants rather than by dark energy.  The model gives credence to dark matter alternatives for explaining galaxy rotation curves, gravitational lensing, etc.  I'll present our latest findings; the research had extensive media coverage earlier this year and last year.