I don't mind Dee being around, if only because she does help establish the "ceiling" of what AI can do in the setting... and the vast majority of AI will fall well short of where she is.
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor