As in, taking the point of view of cosmology about 100 years ago, before the redshift was attributed to the Doppler effect. And before the notion of a big bang was the default basis of reasoning.
- What if H is just a measure of redshift? Literally just redshift. Not expansion. Not an age. Just photons losing energy. At a rate of H.
- What if H actually is constant? Like G and like h and like k (Coulomb's constant).
- What if the universe doesn't have an age?
^ not rhetorical questions. Actually asking.