Quote: sootyj @ September 9 2012, 11:55 AM BSTYes he does let them fiddle and people figuring stuff out in the future is a trope whos had from the early days.
Plus we have actually seen Amy at the controlls a couple of times at the tardis, so he has let her.
Quote: Tursiops @ September 9 2012, 11:56 AM BSTAll introductions which were explained. It is called plotting, a great help to the suspension of disbelief.
They were explained in this episode too.