While they are still somewhat experimental (although approved in Canada and elsewhere), transoral gastroplasty (TOGA), balloons, and similar endoscope based alternatives to bariatric surgery seem promising. While no one has a crystal ball, does anyone have any perspective on how widely they might be used 10 years out? Also, all these procedures are now done under general anesthesia by bariatric surgeons as part of "endoscope surgery." I surprised to learn this since I always thought GI had a monopoly on scopes. How likely is it that these procedures would become done by GI docs? If that happens, would there still be a role for surgeons, a turf battle, or really enough obese patients to go around for both fields?