At EGX earlier today, Valve's Chet Failszeck was in a Q/A session with fans was asked a rather interesting question about Half Life 3, and the answer was rather shocking.
Apparently he was asked again, to clarify the answer, and he just replied that "I said 'no", meaning specifically it won't be VR. So no, Half Life 3 wasn't literally confirmed, but the information gleaned is interesting nonetheless.
Half Life 3, however, seems to be a long-standing meme that shows up as a question in nearly any interview with Valve about anything. So don't expect this to actually mean anything, but it's funny nonetheless. Half Life 3 has been confirmed at least a million different ways already. Right?