Some reasons why I think Clara is CAL
The doctor says "It's silent" and Mr Sweet is described as silent.
CAL uses her MIND to control the library and Clara uses her mind to melt the snowmen and control the Dalek parts.
OMG! In silence in the library, the spinny face things look EXACTLY like the spinny computer face things in the Bells of Saint John!
First message:
"Run, just run," (or something like that)
Second message:
"For gods sake, REMEMBER, if you want to live count the shadows,"
CLARA'S message:
"Run you clever boy and remember,"
Silence in the library: "Course we're safe, there's a little SHOP,"
Clara: "The lady in the SHOP gave it to me,"
Clara: "In the Library, I saw it. You were mentioned in a book,"
Probably the most important key quote to who she is! But, spoilers ;)
Clever boy or...pretty boy?
Clara's mother is dead and CAL doesnt have a mother.
"Only you can save them, only you" Maybe CAL is still trying to save the doctor.
"And then, you REMEMBERED,"
"Saved, no one says saved you say safe. It didnt mean safe it litany meant SAVED," Clara is saved.
"The computer saved 4022 people the only way it can, to the hard drive". CLARA is LOADS of different people!
Bells of Saint John:
People are downloaded, their body ends up on a sort of computer.
Forest of the Dead:
People are saved, their faces end up on a statue.
"And all of history to pass the time, any era to live in any book to read." CAL lives in any era, so does Clara.
"Beam all the people out of the data core" just like they released everyone is the Bells of Saint John.
"Aren't I a CLEVER girl?"
Might be reading too much into this but: Clara Oswin Oswald is an anagram for "A window across all" what is a window across all? A book! Or... In The girl in a fire place there are literally windows through times. But I think it's a book.
Finally: Jenna Louise Coleman said that Moffat had been laying "traps" for the Clara storyline. Guess who Silence in the Library and Forest of the Dead was written by. You got it, Steven Moffat.
