Eleventh Doctor Matt Smith

Here's the problem with Matt Smith, so far as I can tell.  First, watch him in the most recent "Doctor Who Confidential" madly twiddling his fingers trying to come up with the most underwhelming sentences possible.  Yeah.  Comes off as an idiot.  And this is exactly to the point:  to succeed in this role, he needs to convince us that he's the smartest man in the universe, when it's not even clear he's the smartest guy in the room!  Maybe it was just nerves or maybe he's not terribly bright.  If the worst proves true, the best hope is this:  there have been many very good actors who have been total idiots.  Consider Tom Cruise, for instance.