in theory


in theory (http://definr.com/in theory)

     adv 1: according to the assumed facts; "on paper the candidate
            seems promising" [syn: theoretically, on paper]
     2: with regard to fundamentals although not concerning details;
        "in principle, we agree" [syn: in principle, in essence]
     3: as described in contrast to as practiced; "on paper, this
        looks like a good idea" [syn: on paper]