"It's not the case that you exist at a certain time and if we look at a later time there will only be one of you... [When you go to sleep and wake up,] it's not 100% you tomorrow. It will be some degree of you, some percentage of you.
Consider the way you are now versus the way you were as a small child. How similar are you?... [Myself and a friend I have a lot in common with] are much more similar than I am with my five-year-old self. So Parfit says it would be incorrect to say that I am just identical with my previous self, my childhood self. It would be much more accurate to say that there is some degree of continuity between my childhood self and me today."
"If your grandmother did not exist, you would not exist. And if 5 year old [you] died at the age of 5, you wouldn't exist, either. So you might think that you owe your existence to these other beings but that they are separate. We very easily recognize the separateness of you and your grandmother. We think of you and the baby as being the same but we might be very mistaken. It might be better to think of the baby [you] as an ancestor."
Consider the way you are now versus the way you were as a small child. How similar are you?... [Myself and a friend I have a lot in common with] are much more similar than I am with my five-year-old self. So Parfit says it would be incorrect to say that I am just identical with my previous self, my childhood self. It would be much more accurate to say that there is some degree of continuity between my childhood self and me today."
"If your grandmother did not exist, you would not exist. And if 5 year old [you] died at the age of 5, you wouldn't exist, either. So you might think that you owe your existence to these other beings but that they are separate. We very easily recognize the separateness of you and your grandmother. We think of you and the baby as being the same but we might be very mistaken. It might be better to think of the baby [you] as an ancestor."