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Ideas for 'fragments/reports', 'Personal Identity and Individuation' and 'Naming and Necessity lectures'

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16. Persons / D. Continuity of the Self / 2. Mental Continuity / b. Self as mental continuity

7946	The memory criterion has a problem when one thing branches into two things [Williams,B, by Macdonald,C]
	Full Idea: The memory criterion for personal identity permits 'branching' (where two things can later meet the criteria of persistence of a single earlier thing), which presents it with serious problems.
	From: report of Bernard Williams (Personal Identity and Individuation [1956]) by Cynthia Macdonald - Varieties of Things Ch.4
	A reaction: Of course, any notion of personal identity would have serious problem if people could branch into two, like fissioning amoeba. If that happened, we probably wouldn't have had a strong notion of personal identity in the first place. See Parfit.