Here's an example of that "wibbly-wobbly" stuff for which Doctor Who is acclaimed. During Series 1's Rose, fans are shown a photograph of the Ninth Doctor at the Titanic (all dressed up and looking pretty spiffy, it has to be said), however it's earlier mplied in the same episode that he'd only just regenerated from the War Doctor. So when did he have the time to go back to the Titanic? Well, this one has a fairly easy - OK, it's actually complicated - answer. He's a Time Lord, right? After he dropped Rose Tyler off the first time, he reappeared to her seemingly moments later. For him, he could have been gone for days, if not even longer. Who's to say he didn't visit the Titanic during the few seconds he was gone? Timey-wimey indeed!