Original sentence: "it is hard for me to believe that quantum mechanics works so nicely for inefficient practical set-ups and is yet going to fail badly when sufficient refinements are made.As he stated,.Its validity as a Bell test, however, is disputed, since the ions were not sufficiently separated nor the detections done independently, so that the locality loophole was open (Vaidman, 2001).Many physicists follow Bell in believing that it is.The possibility of this not being true when the detector efficiencies are (as in the vast majority of actual experiments) low comprises the fair sampling, detection, efficiency or variable detection probability loophole (Pearle, 1970).Until a loophole-free experiment (García-Patrón, 2004) is conducted, whether or not fair sampling is a reasonable assumption remains an open quesion
Edited sentence: Not surprising, as Bell himself has stated, "it is hard for me to believe that quantum mechanics works so nicely for inefficient practical set-ups and is yet going to fail badly when sufficient refinements are made.The possibility of this not being true comprises the fair sampling, detection, efficiency or variable detection probability loophole.While more work needs to be done, it now appears that fair sampling is a reasonable assumption and is therefore not a loophole