VRTX’s 75% SVR rate is right smack in the middle of the range Josh Boger discussed on a webcast four years ago. From #msg-11635070: 1. If the SVR rate…is <65% , Boger will be disappointed and VRTX will probably have to drop the idea of stopping VX-950 after only three months. 2. If the SVR rate…is >=85% , Boger will be delighted and VRTX will probably forego trying to get the SVR rate even higher... 3. If the SVR rate…is >=65% and <85% , Boger will be neither disappointed nor delighted…