Tim Bates <tbates@karri.bhs.mq.edu.au> writes:
> He makes a very plausible argument for Hannes Elfven's (creator of
> magneto hydrodynamics) idea that most of the structure in the universe
> results not from gravity, but rather from charged plasma activity.
If I recall correctly, Alfven's arguments hinge on the presence of ambiplasma clouds (i.e. low density mixtures of matter and antimatter that remain semistable due to the low density). Unfortunately there is no observational evidence for the annihilation signature they would still show (and it would be rather hard to miss), and this provides a stroung counterargument to the model.
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