Backing into a Definition
	CONTINUE ON

If you want to defend Joyce's argument, consider how you would reply to some of the questions it raises. For example, Although it is true that certain capabilities make a human embryo different from a rabbit embryo, why should we define personhood in terms of those capabilities rather than developed functions? Our question wasn't "What makes a human embryo different?" It was "How should we define 'person'?"

On Joyce's second point, we need to ask why a thing cannot become something essentially different. How do we know that this is true? And how do we decide what counts as "essentially different"? Can you defend Joyce's view?

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