He believed that the Doctor would attempt to cheat and break his own rules to save the universe from collapsing .
Moffat found it interesting that the Doctor regularly experienced time out of order and was used to a whole different kind of causality .
Moffat believed that the Doctor would attempt to cheat and break Moffat 's own rules to save the universe from collapsing .
Moffat found it interesting that the Doctor regularly experienced time out of order and was used to a whole different kind of causality .