Don't get an economics PhD. As some have pointed out, a lot of the "status quo economics" is just hand-wavy nonsense, and there might not be much demand for that stuff five years from now.
I am convinced that this is hard wired in human kind, and no matter if it was back then when were were sitting around the fireplace talking about out last animal hunt or today listening to talk radio/tv, humankind will always enjoy subjective perspectives and interpretations of reality.
Sure, but that's a bit different from Keynesian economics being taught as gospel for decades.