My mother is ninety, but that hasn't diminished her interest in all things medical. After talking about 23andMe, she was sent scurrying around the house for old hair brushes. I now have a collection of her hair and some cheek swabs, packaged and ready to be lodged in my safe at home
Twenty years time, when whole-genome sequencing costs five pounds, one of her descendants may be interested in analysing this particular ancestor .. or cloning her!
---
Is it reassuring to have your complete genome on file? In principle you could be cloned in future. That person would be your "future-twin" .. and so immortality beckons.
I don't know: does a twin feel the other twin is a version of themselves? I rather suspect not.
