Which fields of physics have relatively high demand and relatively low student interest? (especially among strong students?)
I'm especially interested about astrophysics. Does computational astrophysics have high demand among strong students? What about astrobiology?
The reason I'm asking this, of course, is because these fields are probably less competitive (and I have very broad interests so I think I'd find interest in a lot of things). Also, professors would probably treat their grad students better in those fields. I would think that fields that aren't very financially lucrative (in the industrial sector) would be some of them. But also fields that aren't "sexy" or that don't fulfill some existential purpose (e.g. astrobiology or possibly neural physics)