Originally Posted by Thrombin:
“I'm not sure where the knock, knock joke comes in. That is not a joke that makes sense in the Universe of Doctor Who, it only makes sense in our own Universe. That is precisely my point about the fourth wall. If characters are using dialogue that makes no sense in the world in which the drama is set in order to communicate something to the viewing audience then I am calling that breaking the fourth wall.
I thought I'd explained why the question makes no sense within the Doctor Who Universe but I'll try again in more detail:
1) The queston "Doctor who?" is presumably meant to ask what is the name that follows the title "Doctor". That's what it was meant to mean in the show's title. Except that we know that the name "The Doctor" is really more of a job description. Some Time Lords take these nicknames on like "The Master", "The Monk", "The Warrior", "The War Chief". Nobody expects the Master's real name to be something like "Master Beta Sigma". It would just be "Beta Sigma". Similarly, the Doctor's real name is not going to be something like "Doctor Alpha Sigma" (for example) it would just be "Alpha Sigma". So the question "Doctor Who?" in that context is a meaningless question. His true name isn't "Doctor" anything.
2) It is a highly ambiguous question. Which Doctor is it referring to? If Doc Holliday was asked the question he could answer it as "Doctor John Henry Holliday" and he'd be correct. Is it even asking for a name? it could be asking "Doctor who did what?". Doc Holliday could answer it as "The Doctor who was at the OK Corral". Clara could answer it as "Doctor who I like travelling with".
3) It can be answered by anyone who knows the answer, it doesn't have to be the Doctor. River could have answered with the Doctor's true name. So could Clara at one point (having read it in the book "History of the Time War" in the TARDIS library). For that matter, the Kovarian Chapter could have read the book when they infiltrated the TARDIS to blow it up.
So, we have established that this vitally important question is phrased in such a way that it completely fails to prove that the Doctor is the one answering it even if it weren't so ambiguous what the question being asked actually was! What's the point of a truth field if answering truthfully fails to prove anything?
It makes no logical sense for that to be the question. It is quite clear that the only reason that is the question is to refer to the show's title. That is why I call it breaking the fourth wall. I admit that I am using the expression loosely but, basically, it is dialogue within the show that does not fit the universe that the show is set in but, instead, only works for the viewing audience.
Not with me either, because that use of the phrase makes sense within the world that the drama is set. Even though we know it's an in-joke it can still work in that context. When something is said by characters in a drama that don't make sense within the world that that drama is set because it is alluding to a meaning that only makes sense to the viewing audience then I am calling that "breaking the fourth wall". I admit that might not be correct usage for the term but I'm not too bothered if you want to call it something else. I would consider it bad form whether it fits the definition of fourth wall or not.”
My whole point about the knock knock joke was precisely that out is not a 'thing'in the whoniverse. People there can all doctor who? Without someone sniggering and saying, 'oh yeah'. It makes PERFECT 100% sense where and how it wad used.
1)&2) the question is for the only person who should be able to know the answer as far add they know. In that universe it isa very good question. Those who don't know what the question is even about will shrug and ignore it, our if they answer doctor John Smith then it won't be right and nothing well happen. Those that do understand the question still don't know the answer...unless you ARE in fact the doctor.so as questions go it was spot on.
3) the silence faction did not break into the Tardis. It was caused by...let's just say external means Incase I get into another40 page argument

the Tardis also has it's own self defence mechanisms and can shift rooms around. It would not have allowed Clara to see that book if it was important for her not to see it. Our who even knitted if it is really in there? Or if the real name is in there?
So I don't think you have established the question was 'wrong' at all. What other better question is there?
Someone before also asked about why was he still there after 100s of years and why hadn't the enemies just blown it ASL up or something.
Well if he leaves then a free for all with those who want this 'thing' (remember they don't all know what it is -it could be the ultimate weapon or something)/and those who want to destroy it(those that know it's the funds trying to get in ) either way must if them would kill all the inhabitants. None of them can get in to do what they want because if the mainframe shield. Except the off infiltrator. If they did get in the doctor can open it up and let them through before they get anywhere. The doctor doesn't want them to actually come through but will do it if he had no choice (because it means typing that world apart and causing massive destruction to bring them through). So it's a massive standoff. Until the end, by which time the Daleks have killed all the other contenders off and try and trap the doctor. The do NOT want the timelords back on the scene (if the know that's what it is)/ they want the weapon(if that's what they think it is still). So that is why they didn't just blue up the planet and also why the doctor couldn't just leave.