Just in case anybody thinks HannesAlfven may have something behind him when he tries to argue for plasma cosmology (and when he argues against nonbaryonic dark matter, although he cloaks it in the term “the 4% Universe”), he is, in fact, a crank, his claiming that there needs to be some balance between worrying about cranks and worrying about dogmatism is exactly the same thing as the climate denier insisting that there be balance between scientists who accept anthrogenic climante change and those who don’t. (Hint: there’s no balance. Nearly everybody who has thought about it seriously accepts the evidence for climate change, and those who don’t are a fringe minority. It’s the same thing for dark matter and standard cosmology.)
It’s not worth repeating all the evidence here, but if you’re interested in finding out why the “Electric Universe” and all of that is in fact a crank theory, and not a real theory, I point you to the following posts on Tom Bridgman’s blog, which does a nice job of summarizing some of the seirous problems with those notions:
It’s worth reading around his blog; he has other good information there about why EU theorists and such are not keeping up with science, and why they aren’t actually viable alternatives, the way folks like HannesAlfven claims.