Recursion: Difference between revisions
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{{video|Recursion ploy - Doctor Who Castrovalva - BBC|thumb|Recursion explained. ([[TV]]: {{cs|Castrovalva (TV story)}})}} | {{video|Recursion ploy - Doctor Who Castrovalva - BBC|thumb|Recursion explained. ([[TV]]: {{cs|Castrovalva (TV story)}})}} | ||
'''[https://tardis.fandom.com/wiki/Recursion Recursion]''' was the concept that ideas and concepts, as [[Nyssa]] put it, "fold back on themselves". Trying to come to grips with the concept, [[Tegan]] surmised that "if we had an [[index file]] we could look it up in the index file under 'index file'". | '''[https://tardis.fandom.com/wiki/Recursion Recursion]''' was the concept that ideas and concepts, as [[Nyssa]] put it, "fold back on themselves". Trying to come to grips with the concept, [[Tegan]] surmised that "if we had an [[index file]] we could look it up in the index file under 'index file'". | ||
Revision as of 20:26, 1 August 2024
Recursion was the concept that ideas and concepts, as Nyssa put it, "fold back on themselves". Trying to come to grips with the concept, Tegan surmised that "if we had an index file we could look it up in the index file under 'index file'".
When Mergrave assured the Fifth Doctor that he was telling the truth because "I maintain that I am, and I am a man of my word," the Doctor called it a "perfect example of recursion".
The Doctor later realised that Castrovalva itself was — as a mathematical construct of the Tremas Master — inherently recursive. The Master intended to trap the Doctor there as the recursion folded in on itself and the reality collapsed. (TV: Castrovalva [+]Loading...["Castrovalva (TV story)"])
