Yeah, I had a brief skim of it from a colleague as well. Seemed pretty good. I'm probably not qualified to assess the specific technical merits at this point (though I followed portions of it well enough), but I assume others in the forum should be able to pick it apart for technical plausibility and usefulness under other circumstances.

From what I can gather, Hultqvist seems to follow the Alfvén line of reasoning and investigation RE: the auroras. Not sure whether he's in any way a protége or studied under Alfvén, or is simply familiar with the work.

Either way he seems to have plenty of kind words for Alfvén in acknowledging that Alfvén made a lot of predictions and suggestions that weren't taken seriously at the time or were dismissed but later confirmed. *Shrug* Alfvén had a fair enough track record.

Regards,
~Michael