Sorry Kev, have to take you to task there.
Exactly how was the "magic" of acquiring some of the Tardis heart's power any different from believing that BB and Weakest Link would STILL be popular thousands of years later. Magic? Bloody impossible!
Dr Who is not exactly science-based fiction. It is no more Science fiction than Lord of the Rings, obviously fantasy.You would need to read a science fiction novel from modern writers such as Greg Bear to appreciate a scientific based story.
A SINK PLUNGER CANNOT BE A DEADLY WEAPON! (god knows I've tried)