Theory:Doctor Who television discontinuity and plot holes/The Big Bang


 * The Doctor is exterminated by the Stone Dalek, but he doesn't regenerate.


 * It's firepower may not have been strong enough to kill him, just weaken him. Plus, it's possible that he halted the regeneration process long enough for him to get into the Pandorica, possibly meaning that you can't regenerate inside it.


 * To quote River Song: "The Doctor always lies." The Doctor didn't die, therefore he shouldn't regenerate


 * What caused the cracks?
 * It would probably be the TARDIS, possibly the cracks came from damaged time that gained from the TARDIS' repeating explosion, with itself repeating for many thousands of years, it may well have the cause of the cracks.