anonymous commented on 'Fission and Zygotes'
Of course, the fertilized egg divides shortly after conception, and is much more than one cell at implantation. This criteria thus has little practical utility for ethics given current technology,...
View ArticleSteven commented on 'Fission and Zygotes'
Unlike drops of rain or the individuals in thought experiments in the personal identity literature, zygotes don't just split -- they duplicate themselves. This seems to me to be a relevant...
View ArticleBill Vallicella commented on 'Fission and Zygotes'
Steven, Why is the dissimilarity relevant? What exactly is duplication? Your second point illustrates an approach that makes things too easy. Confronted with any difficulty whatosever one just...
View ArticleBill Vallicella commented on 'Fission and Zygotes'
Hi David, Not sure I follow you. If a water droplet splits into two droplets and you analyze this by saying that one thing retains its identity as the same thing except that after fission it has two...
View ArticleSteven commented on 'Fission and Zygotes'
BV, Sorry for the late comment. I only now remembered I left a comment on this thread, after having thought about the issue a bit tonight, and I was curious to see if you'd responded. "Why is the...
View ArticleDavid Brightly commented on 'Fission and Zygotes'
In the case of water droplets, surely very little. But it seems to me a given that we identify certain assemblies of n cells as individual organisms that remain the same individuals when one of their...
View ArticleDavid Brightly commented on 'Fission and Zygotes'
Hello Bill, Surely you abandon P4 too quickly? You ask, How can one thing become two things? Perhaps this isn't quite the right question. Instead we could ask, How can something consisting of one part...
View Articleanonymous commented on 'Fission and Zygotes'
Of course, the fertilized egg divides shortly after conception, and is much more than one cell at implantation. This criteria thus has little practical utility for ethics given current technology,...
View ArticleSteven commented on 'Fission and Zygotes'
Unlike drops of rain or the individuals in thought experiments in the personal identity literature, zygotes don't just split -- they duplicate themselves. This seems to me to be a relevant...
View ArticleBill Vallicella commented on 'Fission and Zygotes'
Steven,Why is the dissimilarity relevant? What exactly is duplication?Your second point illustrates an approach that makes things too easy. Confronted with any difficulty whatosever one just announces:...
View ArticleDavid Brightly commented on 'Fission and Zygotes'
Hello Bill,Surely you abandon P4 too quickly? You ask, How can one thing become two things? Perhaps this isn't quite the right question. Instead we could ask, How can something consisting of one part...
View ArticleBill Vallicella commented on 'Fission and Zygotes'
Hi David,Not sure I follow you. If a water droplet splits into two droplets and you analyze this by saying that one thing retains its identity as the same thing except that after fission it has two...
View ArticleDavid Brightly commented on 'Fission and Zygotes'
In the case of water droplets, surely very little. But it seems to me a given that we identify certain assemblies of n cells as individual organisms that remain the same individuals when one of their...
View ArticleSteven commented on 'Fission and Zygotes'
BV,Sorry for the late comment. I only now remembered I left a comment on this thread, after having thought about the issue a bit tonight, and I was curious to see if you'd responded."Why is the...
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