If I were a patient, well informed about the trail, knowing there is a 50/50% chance I'm not really operated upon, how would I be in the operating 'theater'?
I'm almost shure I would know if it was for real or not. Docters are no actors... (as actors are no docters..)
I'm not blind/'blind' (because I'm concious and not a fool, I want to know if I am getting 'the real thing'), so the trail is not double-blind anymore, when I am alert.
So, the question remains... how do they do it..? How can they fool me, while I am awake?