Theory:Doctor Who television discontinuity and plot holes/Galaxy 4


 * How can Vicki detect/hear the Chumbly investigating the sides and a corner of the Tardis when the inside and outside are in different dimensions?


 * There are sensors outside the TARDIS.


 * After the TARDIS has landed, it makes sense that it would establish a fixed relationship between the outer dimension, and the inner dimension. Therefore it stands to reason that outside disturbances could be felt inside. (It does pose the question, what would happen inside the TARDIS if someone were to knock the box over?)


 * There are many instances where it has been shown that motion of the box itself can be felt within the alternate interior dimension.