Re: Doctor Who and the Daleks in the Seven Keys to Doomsday
The Liar's Paradox indicates that truth is a process, not an absolute - and that the worthiness of the 'truth' can be determined by the usefulness of the process.
For example, the sentence 'This is not true' is of itself, absurd. However, if you were to use the iterative process it implies to come up with a solution to some other problem, or a new way of understanding etc. - it could be thought of to be 'True' in the sense that it has proven itself to be a useful process.
However, if the process simply results in an endlessly fruitless loop of introspection it could be thought of to be 'False' in the sense that it's a useless process (unless your intention is to drive a computer to destruct itself that is - in which case it's true again :) )
Why Paris? Haven't seen her for a while, that's all.