Alfred Centauri, I don't want to get dragged into a scientific debate, because I'm likely to be bombarded with requests for citations which will almost certainly be summarily dismissed on the grounds that I am only giving my own interpretations of these citations. 

 However, I will leave you with something to think about. In hydrodynamics, curl v = Ω, where Ω equals vorticity and where v equals velocity field. Which is more fundamental? Vorticity or velocity? Likewise with A and B. ( )