In theoretical physics, I'm torn between high-energy and condensed matter physics. Is it true that the former has a much steeper learning curve than the latter, assuming I don't pick a well-trodden area like high temperature superconductivity? I'd like to start becoming productive as early as possible, and I don't necessarily want to spend more time than needed in getting up to speed. Does that rule out high-energy theory for me?
closed as not constructive by Qmechanic♦, Manishearth♦, Emilio Pisanty, Ϛѓăʑɏ βµԂԃϔ, Sklivvz♦ Dec 26 '12 at 13:07
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