  The Hubble expansion of the Universe is considered in the classical limit of
Big Bang quantum cosmology. Consistency with general relativity obtains in an
IR coupling to the bare cosmological constant parameterized by the Hubble
horizon. The resulting effective dark energy $\Lambda$ has a simple meaning as
a relic of the Big Bang, breaking time-translation invariance on a Hubble
time-scale. We identify $\Lambda$ with the trace $J$ of the Schouten tensor,
allowing for an analytic solution $H(z)$ beyond $\Lambda$CDM. Subject to the
{\em Baryonic Accoustic Oscillations} (BAO), $J$CDM predicts $H_0$ to be
$\sqrt{6/5}$ times $H_0$ in $\Lambda$CDM. $J$CDM is consistent with the
$\Lambda$CDM fit to the {\em Planck} 2018 power spectrum of the CMB, while
alleviating the $H_0$-tension with the Local Distance Ladder.
