TGD suggest an interpretation in terms of fluctuations in the value of G. The fluctuations are predicted to be make themselves visible in p-adic lengths scales assignable to the density of vacuum energy. The correspondence between these relatively short p-adic length scales and the hierarchy of cosmological p-adic length scales defined by length scale dependent cosmological constant Λ suggests that gravitational physics at short and long length scales reflect each other. Biologically interesting p-adic length scales would be of special interest quantum gravitationally.
See the article Fluctuations of Newton's constant in sub-millimeter scales as evidence for TGD or the chapter About the Nottale's formula for hgr and the possibility that Planck length lP and CP2 length R are identical of "Physics in Many-sheeted space-time".
For a summary of earlier postings see Latest progress in TGD.