Board Thread:The Panopticon/@comment-27350284-20151205202907

On the wiki page for Heaven Sent, there is a line in the production errors which states "Some of the scenes that are re-made, and meant to be identical, have been slightly changed. One example is the Doctor's threat after stepping out from the teleport." but is this strictly an error?

The events of Heaven Sent are not a time loop but a continuing struggle of new Doctors going through the same puzzle and challenges but this doesn't mean that some would come to ideas in a slightly different way while going through the same solutions due to subconscious quirks.

A couple of differences are for certain, firstly the first version would not of had any interaction with skulls or the bird message and secondly any time the Doctor measured time by the stars he would have a different thought pattern which could result in later differences. Also, the length of time it would take to say longer time amounts (E.G. saying Seven Thousand years and saying Two Billion years).

A lot of this is speculation on my part but I couldn't see any evidence within the story which says each loop MUST be identical.

This is especially true if there is some memory transfer between Doctors (as suggested by the end but not confirmed), then there maybe some bleed between Doctors resulting in subconscious changes.  