If two identical twins developed amnesia, how would others be able to verify who they are?

According to Hume's theory, without psychological continuity, and sharing the same DNA, would they, in fact, be the same person? What makes us "ourselves"?If two identical twins developed amnesia, how would others be able to verify who they are?
WOW! Awesome question! I thought I was the only one who thought of weird stuff like that!:-) I agree, itd almost have to be with fingerprints, or identification from a very close loved one. Assuming, of course, that at least one of them had been fingerprinted in the past-- and of course also assuming that when that was done, the twins hadnt decided to trade places that day..... i digress.

As, for the "what makes us ourselves?" question, in the case of identical, or even siamese twins; as i understand, in many ways they often do 'feel' as though they are they same person. I think that aside from the actual dna and other scientific parts of the equation that the way people feel about something is a big part of what they are/will become. So, does that not make it reality; at least for them?
This is a good question, and seemingly original - thanks.

My child's father is an identical twin and she has NEVER been fooled even as a toddler she knew the difference. Which I thought was amazing!

I think that others close to the twins would be able to help them discover the difference. ---------------------

study published in the March 2008 issue of The American Journal of Human Genetics offers further explanation, even challenging the accepted notion that identical twins have identical genetic profiles. The research found changes in the DNA sequence between identical twins, reflected in Copy Number Variations (when a gene exists in multiple copies.) The researchdid not confirm whether these changes occur during fetal development or as twins age.



The research is significant because many medical conditions can be influenced by copy number variations, such as autism, AIDS, and lupus.If two identical twins developed amnesia, how would others be able to verify who they are?
No. Each of them has a separate body and separate brain. They may be born with the same DNA but as they age (via epigenetics) they become more different. Their fingerprints are different for a quick check of who is who.



If you transfered one person's brain into a clone body *with* psychological continuity, I could concede that was the same person.
Their prints are still different. Hospitals put footprints on birth certificates so the twins don't get mixed up when they're young.If two identical twins developed amnesia, how would others be able to verify who they are?
Fingerprints. And I bet their mother would know the difference.

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