  We summarize the results showing that all existing data on mixing between up
and down fermion states (i.e. CKM matrix and neutrino oscillations) and on the
hierarchical quark and lepton mass ratios between generations are consistent
with the two phenomena being both consequences of a mass matrix rotating in
generation space with changing energy scale. Thus the rotation of the mass
matrix can be traced over some 14 orders of magnitude in energy from the mass
scale of the $t$-quark at 175 GeV to below that of the atmospheric neutrino at
0.05 eV.
