  By using a properly generalized accretion formalism it is argued that the
accretion of phantom energy onto a wormhole does not make the size of the
wormhole throat to comovingly scale with the scale factor of the universe, but
instead induces an increase of that size so big that the wormhole can engulf
the universe itself before it reaches the big rip singularity, at least
relative to an asymptotic observer.
