An internal inconsistency with mutually exclusive Hamiltonians and the
corresponding mutually exclusive states HH and H-antiH suffices to doubt the
usefulness of ab initio calculations for H-antiH based on 1927 Heitler-London
theory. Removing this inconsistency in a generic way invalidates this theory
but the compensation is that problems with antihydrogen are removed.Comment: 4 pages, short version of a long paper in Eur Phys J D, Online First
(2005), submitted to Phys Rev Let