User:SOTO/Forum Archive/The Panopticon/@comment-121.45.54.78-20130925110520/@comment-1783865-20191120115025
From Tardis Wiki, the free Doctor Who reference
An appearance is not implied if you actually do know (for example by sound) that it/they are there. If you hear the sound of a Dalek (like in the TV movie) it is not just implied it is there just because you don't see it, it is actually there. Same goes for the vortex manipulator sound
