The hardest problems in computer science: cache invalidation, naming things, and Doctor Who special episode numbering
@joepie91 the third of those has canonical numbering (also, isn't that just a subset of naming things? :D)
@Rairii Unfortunately, different sources disagree on what that canonical numbering is
@joepie91 It could well have changed over time.
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@joepie91 It could well have changed over time.